7975645 has 8 divisors (see below), whose sum is σ = 9614304. Its totient is φ = 6351504.

The previous prime is 7975637. The next prime is 7975651. The reversal of 7975645 is 5465797.

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 7975645 - 2³ = 7975637 is a prime.

It is a super-2 number, since 2×7975645² = 127221826332050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2379 + ... + 4648.

It is an arithmetic number, because the mean of its divisors is an integer number (1201788).

Almost surely, 2^7975645 is an apocalyptic number.

It is an amenable number.

7975645 is a deficient number, since it is larger than the sum of its proper divisors (1638659).

7975645 is a wasteful number, since it uses less digits than its factorization.

7975645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7259.

The product of its digits is 264600, while the sum is 43.

The square root of 7975645 is about 2824.1184465245. The cubic root of 7975645 is about 199.7968353572.

The spelling of 7975645 in words is "seven million, nine hundred seventy-five thousand, six hundred forty-five".