85658983 has 8 divisors (see below), whose sum is σ = 88825856. Its totient is φ = 82517400.

The previous prime is 85658981. The next prime is 85658987. The reversal of 85658983 is 38985658.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 85658983 - 2¹ = 85658981 is a prime.

It is a super-2 number, since 2×85658983² = 14674922737188578, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 85658983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85658981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 718 + ... + 13108.

It is an arithmetic number, because the mean of its divisors is an integer number (11103232).

Almost surely, 2^85658983 is an apocalyptic number.

85658983 is a deficient number, since it is larger than the sum of its proper divisors (3166873).

85658983 is a wasteful number, since it uses less digits than its factorization.

85658983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12645.

The product of its digits is 2073600, while the sum is 52.

The square root of 85658983 is about 9255.2138278918. The cubic root of 85658983 is about 440.8162928635.

The spelling of 85658983 in words is "eighty-five million, six hundred fifty-eight thousand, nine hundred eighty-three".