377975997 has 32 divisors (see below), whose sum is σ = 667791360. Its totient is φ = 206593200.

The previous prime is 377975989. The next prime is 377975999. The reversal of 377975997 is 799579773.

377975997 is a `hidden beast` number, since 37 + 7 + 9 + 7 + 599 + 7 = 666.

It is not a de Polignac number, because 377975997 - 2³ = 377975989 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (377975999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39129 + ... + 47822.

It is an arithmetic number, because the mean of its divisors is an integer number (20868480).

Almost surely, 2^377975997 is an apocalyptic number.

It is an amenable number.

377975997 is a deficient number, since it is larger than the sum of its proper divisors (289815363).

377975997 is a wasteful number, since it uses less digits than its factorization.

377975997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86990 (or 86984 counting only the distinct ones).

The product of its digits is 26254935, while the sum is 63.

The square root of 377975997 is about 19441.6047948723. The cubic root of 377975997 is about 723.0273745252.

The spelling of 377975997 in words is "three hundred seventy-seven million, nine hundred seventy-five thousand, nine hundred ninety-seven".