374963661 has 20 divisors (see below), whose sum is σ = 575274172. Its totient is φ = 243217728.

The previous prime is 374963639. The next prime is 374963731. The reversal of 374963661 is 166369473.

374963661 is a `hidden beast` number, since 3 + 7 + 4 + 9 + 636 + 6 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 152028900 + 222934761 = 12330^2 + 14931^2 .

It is not a de Polignac number, because 374963661 - 2¹⁵ = 374930893 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 (374963621) 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, 59560 + ... + 65553.

Almost surely, 2^374963661 is an apocalyptic number.

It is an amenable number.

374963661 is a deficient number, since it is larger than the sum of its proper divisors (200310511).

374963661 is a wasteful number, since it uses less digits than its factorization.

374963661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125162 (or 125153 counting only the distinct ones).

The product of its digits is 489888, while the sum is 45.

The square root of 374963661 is about 19363.9784393600. The cubic root of 374963661 is about 721.1014911092.

The spelling of 374963661 in words is "three hundred seventy-four million, nine hundred sixty-three thousand, six hundred sixty-one".