7965977 has 4 divisors (see below), whose sum is σ = 8222976. Its totient is φ = 7708980.

The previous prime is 7965949. The next prime is 7966001. The reversal of 7965977 is 7795697.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 7965977 - 2⁸ = 7965721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7965907) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128453 + ... + 128514.

It is an arithmetic number, because the mean of its divisors is an integer number (2055744).

Almost surely, 2^7965977 is an apocalyptic number.

It is an amenable number.

7965977 is a deficient number, since it is larger than the sum of its proper divisors (256999).

7965977 is a wasteful number, since it uses less digits than its factorization.

7965977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256998.

The product of its digits is 833490, while the sum is 50.

The square root of 7965977 is about 2822.4062429069. The cubic root of 7965977 is about 199.7160721155.

The spelling of 7965977 in words is "seven million, nine hundred sixty-five thousand, nine hundred seventy-seven".