377349721 has 16 divisors (see below), whose sum is σ = 440864640. Its totient is φ = 316298880.

The previous prime is 377349689. The next prime is 377349733. The reversal of 377349721 is 127943773.

It is a cyclic number.

It is not a de Polignac number, because 377349721 - 2⁵ = 377349689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (377349751) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73965 + ... + 78901.

It is an arithmetic number, because the mean of its divisors is an integer number (27554040).

Almost surely, 2^377349721 is an apocalyptic number.

It is an amenable number.

377349721 is a deficient number, since it is larger than the sum of its proper divisors (63514919).

377349721 is a wasteful number, since it uses less digits than its factorization.

377349721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5184.

The product of its digits is 222264, while the sum is 43.

The square root of 377349721 is about 19425.4915253128. The cubic root of 377349721 is about 722.6278209216.

The spelling of 377349721 in words is "three hundred seventy-seven million, three hundred forty-nine thousand, seven hundred twenty-one".