7645904 has 40 divisors (see below), whose sum is σ = 17826240. Its totient is φ = 3103488.

The previous prime is 7645889. The next prime is 7645909. The reversal of 7645904 is 4095467.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7645909) 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, 332 + ... + 3924.

It is an arithmetic number, because the mean of its divisors is an integer number (445656).

Almost surely, 2^7645904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7645904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8913120).

7645904 is an abundant number, since it is smaller than the sum of its proper divisors (10180336).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7645904 is a wasteful number, since it uses less digits than its factorization.

7645904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3627 (or 3621 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 7645904 is about 2765.1227820840. The cubic root of 7645904 is about 197.0045606922.

The spelling of 7645904 in words is "seven million, six hundred forty-five thousand, nine hundred four".