7997955 has 48 divisors (see below), whose sum is σ = 15508224. Its totient is φ = 3447360.

The previous prime is 7997947. The next prime is 7997959. The reversal of 7997955 is 5597997.

It is a happy number.

It is not a de Polignac number, because 7997955 - 2³ = 7997947 is a prime.

Its product of digits (893025) is a multiple of the sum of its prime divisors (245).

It is a junction number, because it is equal to n+sod(n) for n = 7997898 and 7997907.

It is not an unprimeable number, because it can be changed into a prime (7997959) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 37800 + ... + 38010.

It is an arithmetic number, because the mean of its divisors is an integer number (323088).

Almost surely, 2^7997955 is an apocalyptic number.

7997955 is a deficient number, since it is larger than the sum of its proper divisors (7510269).

7997955 is a wasteful number, since it uses less digits than its factorization.

7997955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264 (or 245 counting only the distinct ones).

The product of its digits is 893025, while the sum is 51.

The square root of 7997955 is about 2828.0655932987. The cubic root of 7997955 is about 199.9829568810.

The spelling of 7997955 in words is "seven million, nine hundred ninety-seven thousand, nine hundred fifty-five".