377356421 has 4 divisors (see below), whose sum is σ = 406383852. Its totient is φ = 348328992.

The previous prime is 377356417. The next prime is 377356453. The reversal of 377356421 is 124653773.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 233020225 + 144336196 = 15265^2 + 12014^2 .

It is a cyclic number.

It is not a de Polignac number, because 377356421 - 2² = 377356417 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (377356411) 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, 14513696 + ... + 14513721.

It is an arithmetic number, because the mean of its divisors is an integer number (101595963).

Almost surely, 2^377356421 is an apocalyptic number.

It is an amenable number.

377356421 is a deficient number, since it is larger than the sum of its proper divisors (29027431).

377356421 is a wasteful number, since it uses less digits than its factorization.

377356421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29027430.

The product of its digits is 105840, while the sum is 38.

The square root of 377356421 is about 19425.6639783561. The cubic root of 377356421 is about 722.6320977480.

The spelling of 377356421 in words is "three hundred seventy-seven million, three hundred fifty-six thousand, four hundred twenty-one".