7949915 has 16 divisors (see below), whose sum is σ = 9979200. Its totient is φ = 6072192.

The previous prime is 7949899. The next prime is 7949933. The reversal of 7949915 is 5199497.

It is a cyclic number.

It is not a de Polignac number, because 7949915 - 2⁴ = 7949899 is a prime.

It is a super-2 number, since 2×7949915² = 126402297014450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15554 + ... + 16056.

It is an arithmetic number, because the mean of its divisors is an integer number (623700).

Almost surely, 2^7949915 is an apocalyptic number.

7949915 is a deficient number, since it is larger than the sum of its proper divisors (2029285).

7949915 is a wasteful number, since it uses less digits than its factorization.

7949915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646.

The product of its digits is 102060, while the sum is 44.

The square root of 7949915 is about 2819.5593627374. The cubic root of 7949915 is about 199.5817509484.

It can be divided in two parts, 79 and 49915, that added together give a palindrome (49994).

The spelling of 7949915 in words is "seven million, nine hundred forty-nine thousand, nine hundred fifteen".