7855960 has 32 divisors (see below), whose sum is σ = 20201760. Its totient is φ = 2693376.

The previous prime is 7855931. The next prime is 7855973. The reversal of 7855960 is 695587.

It is a happy number.

It is a super-2 number, since 2×7855960² = 123432215043200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (40).

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, 13749 + ... + 14308.

It is an arithmetic number, because the mean of its divisors is an integer number (631305).

Almost surely, 2^7855960 is an apocalyptic number.

7855960 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

7855960 is an abundant number, since it is smaller than the sum of its proper divisors (12345800).

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

7855960 is a wasteful number, since it uses less digits than its factorization.

7855960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28075 (or 28071 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 40.

The square root of 7855960 is about 2802.8485510280. The cubic root of 7855960 is about 198.7923897296.

The spelling of 7855960 in words is "seven million, eight hundred fifty-five thousand, nine hundred sixty".