7645090 has 16 divisors (see below), whose sum is σ = 13841280. Its totient is φ = 3040240.

The previous prime is 7645073. The next prime is 7645117. The reversal of 7645090 is 905467.

It is a super-2 number, since 2×7645090² = 116894802216200, which contains 22 as substring.

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, 346 + ... + 3925.

It is an arithmetic number, because the mean of its divisors is an integer number (865080).

Almost surely, 2^7645090 is an apocalyptic number.

7645090 is a deficient number, since it is larger than the sum of its proper divisors (6196190).

7645090 is a wasteful number, since it uses less digits than its factorization.

7645090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4457.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 7645090 is about 2764.9755875957. The cubic root of 7645090 is about 196.9975692624.

The spelling of 7645090 in words is "seven million, six hundred forty-five thousand, ninety".