7973700977 has 4 divisors (see below), whose sum is σ = 8698582896. Its totient is φ = 7248819060.

The previous prime is 7973700953. The next prime is 7973700997. The reversal of 7973700977 is 7790073797.

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 7973700977 - 2⁶ = 7973700913 is a prime.

It is a super-2 number, since 2×7973700977² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7973700997) 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, 362440943 + ... + 362440964.

It is an arithmetic number, because the mean of its divisors is an integer number (2174645724).

Almost surely, 2^7973700977 is an apocalyptic number.

It is an amenable number.

7973700977 is a deficient number, since it is larger than the sum of its proper divisors (724881919).

7973700977 is a wasteful number, since it uses less digits than its factorization.

7973700977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 724881918.

The product of its (nonzero) digits is 4084101, while the sum is 56.

The square root of 7973700977 is about 89295.5820687675. The cubic root of 7973700977 is about 1997.8060088315.

The spelling of 7973700977 in words is "seven billion, nine hundred seventy-three million, seven hundred thousand, nine hundred seventy-seven".