7977152 has 14 divisors (see below), whose sum is σ = 15829788. Its totient is φ = 3988544.

The previous prime is 7977149. The next prime is 7977157. The reversal of 7977152 is 2517797.

It is a super-2 number, since 2×7977152² = 127269908062208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7977157) 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 as a sum of consecutive naturals, namely, 62258 + ... + 62385.

Almost surely, 2^7977152 is an apocalyptic number.

It is an amenable number.

7977152 is a deficient number, since it is larger than the sum of its proper divisors (7852636).

7977152 is a wasteful number, since it uses less digits than its factorization.

7977152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124655 (or 124645 counting only the distinct ones).

The product of its digits is 30870, while the sum is 38.

The square root of 7977152 is about 2824.3852428449. The cubic root of 7977152 is about 199.8094184511.

The spelling of 7977152 in words is "seven million, nine hundred seventy-seven thousand, one hundred fifty-two".