7678957 has 8 divisors (see below), whose sum is σ = 9021600. Its totient is φ = 6443760.

The previous prime is 7678933. The next prime is 7678961. The reversal of 7678957 is 7598767.

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-7678957 is a prime.

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 7678957.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7678927) 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, 26707 + ... + 26992.

It is an arithmetic number, because the mean of its divisors is an integer number (1127700).

Almost surely, 2^7678957 is an apocalyptic number.

It is an amenable number.

7678957 is a deficient number, since it is larger than the sum of its proper divisors (1342643).

7678957 is a wasteful number, since it uses less digits than its factorization.

7678957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53723.

The product of its digits is 740880, while the sum is 49.

The square root of 7678957 is about 2771.0931056173. The cubic root of 7678957 is about 197.2880340866.

The spelling of 7678957 in words is "seven million, six hundred seventy-eight thousand, nine hundred fifty-seven".