7945900 has 36 divisors (see below), whose sum is σ = 17377360. Its totient is φ = 3153600.

The previous prime is 7945897. The next prime is 7945909. The reversal of 7945900 is 95497.

It is not an unprimeable number, because it can be changed into a prime (7945909) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17881 + ... + 18319.

Almost surely, 2^7945900 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 7945900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8688680).

7945900 is an abundant number, since it is smaller than the sum of its proper divisors (9431460).

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

7945900 is a wasteful number, since it uses less digits than its factorization.

7945900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634 (or 627 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 34.

The square root of 7945900 is about 2818.8472821350. The cubic root of 7945900 is about 199.5481465779.

The spelling of 7945900 in words is "seven million, nine hundred forty-five thousand, nine hundred".