7640955 has 48 divisors (see below), whose sum is σ = 15335424. Its totient is φ = 3447360.

The previous prime is 7640933. The next prime is 7640987. The reversal of 7640955 is 5590467.

7640955 is a `hidden beast` number, since 7 + 640 + 9 + 5 + 5 = 666.

It is not a de Polignac number, because 7640955 - 2⁷ = 7640827 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 39910 + ... + 40100.

It is an arithmetic number, because the mean of its divisors is an integer number (319488).

Almost surely, 2^7640955 is an apocalyptic number.

7640955 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

7640955 is a wasteful number, since it uses less digits than its factorization.

7640955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336 (or 333 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The square root of 7640955 is about 2764.2277402559. The cubic root of 7640955 is about 196.9620461639.

The spelling of 7640955 in words is "seven million, six hundred forty thousand, nine hundred fifty-five".