377393985 has 20 divisors (see below), whose sum is σ = 676514388. Its totient is φ = 201276576.

The previous prime is 377393983. The next prime is 377394001. The reversal of 377393985 is 589393773.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 87441201 + 289952784 = 9351^2 + 17028^2 .

It is not a de Polignac number, because 377393985 - 2¹ = 377393983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (377393983) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 465514 + ... + 466323.

Almost surely, 2^377393985 is an apocalyptic number.

It is an amenable number.

377393985 is a deficient number, since it is larger than the sum of its proper divisors (299120403).

377393985 is an equidigital number, since it uses as much as digits as its factorization.

377393985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 931854 (or 931845 counting only the distinct ones).

The product of its digits is 4286520, while the sum is 54.

The square root of 377393985 is about 19426.6308195734. The cubic root of 377393985 is about 722.6560751250.

The spelling of 377393985 in words is "three hundred seventy-seven million, three hundred ninety-three thousand, nine hundred eighty-five".