380697977 has 4 divisors (see below), whose sum is σ = 415306896. Its totient is φ = 346089060.

The previous prime is 380697973. The next prime is 380698007. The reversal of 380697977 is 779796083.

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, and also an emirpimes, since its reverse is a distinct semiprime: 779796083 = 11 ⋅70890553.

It is a cyclic number.

It is not a de Polignac number, because 380697977 - 2² = 380697973 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (380697971) 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, 17304443 + ... + 17304464.

It is an arithmetic number, because the mean of its divisors is an integer number (103826724).

Almost surely, 2^380697977 is an apocalyptic number.

It is an amenable number.

380697977 is a deficient number, since it is larger than the sum of its proper divisors (34608919).

380697977 is a wasteful number, since it uses less digits than its factorization.

380697977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34608918.

The product of its (nonzero) digits is 4000752, while the sum is 56.

The square root of 380697977 is about 19511.4832086133. The cubic root of 380697977 is about 724.7588429794.

The spelling of 380697977 in words is "three hundred eighty million, six hundred ninety-seven thousand, nine hundred seventy-seven".