377981065 has 16 divisors (see below), whose sum is σ = 565499520. Its totient is φ = 235624320.

The previous prime is 377981063. The next prime is 377981101. The reversal of 377981065 is 560189773.

It is not a de Polignac number, because 377981065 - 2¹ = 377981063 is a prime.

It is not an unprimeable number, because it can be changed into a prime (377981063) 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, 490500 + ... + 491269.

It is an arithmetic number, because the mean of its divisors is an integer number (35343720).

Almost surely, 2^377981065 is an apocalyptic number.

377981065 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

377981065 is a deficient number, since it is larger than the sum of its proper divisors (187518455).

377981065 is a wasteful number, since it uses less digits than its factorization.

377981065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 981792.

The product of its (nonzero) digits is 317520, while the sum is 46.

The square root of 377981065 is about 19441.7351334700. The cubic root of 377981065 is about 723.0306060235.

It can be divided in two parts, 3779810 and 65, that added together give a triangular number (3779875 = T₂₇₄₉).

The spelling of 377981065 in words is "three hundred seventy-seven million, nine hundred eighty-one thousand, sixty-five".