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966989 = 2342043
BaseRepresentation
bin11101100000101001101
31211010110102
43230011031
5221420424
632420445
711135132
oct3540515
91733412
10966989
11600571
123a7725
1327b1aa
141b2589
151417ae
hexec14d

966989 has 4 divisors (see below), whose sum is σ = 1009056. Its totient is φ = 924924.

The previous prime is 966971. The next prime is 966991. The reversal of 966989 is 989669.

It is a happy number.

966989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-966989 is a prime.

It is a super-2 number, since 2×9669892 = 1870135452242, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (966919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20999 + ... + 21044.

It is an arithmetic number, because the mean of its divisors is an integer number (252264).

2966989 is an apocalyptic number.

It is an amenable number.

966989 is a deficient number, since it is larger than the sum of its proper divisors (42067).

966989 is a wasteful number, since it uses less digits than its factorization.

966989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42066.

The product of its digits is 209952, while the sum is 47.

The square root of 966989 is about 983.3559884396. The cubic root of 966989 is about 98.8872982018.

The spelling of 966989 in words is "nine hundred sixty-six thousand, nine hundred eighty-nine".

Divisors: 1 23 42043 966989