7506989 has 8 divisors (see below), whose sum is σ = 8630400. Its totient is φ = 6396336.

The previous prime is 7506959. The next prime is 7507021. The reversal of 7506989 is 9896057.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7506989 is a prime.

It is a super-2 number, since 2×7506989² = 112709767692242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7506959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1889 + ... + 4310.

It is an arithmetic number, because the mean of its divisors is an integer number (1078800).

Almost surely, 2^7506989 is an apocalyptic number.

It is an amenable number.

7506989 is a deficient number, since it is larger than the sum of its proper divisors (1123411).

7506989 is a wasteful number, since it uses less digits than its factorization.

7506989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6379.

The product of its (nonzero) digits is 136080, while the sum is 44.

The square root of 7506989 is about 2739.8885013810. Note that the first 3 decimals coincide. The cubic root of 7506989 is about 195.8041654260.

The spelling of 7506989 in words is "seven million, five hundred six thousand, nine hundred eighty-nine".