376631649 has 9 divisors (see below), whose sum is σ = 544107603. Its totient is φ = 251048952.

The previous prime is 376631639. The next prime is 376631653. The reversal of 376631649 is 946136673.

The square root of 376631649 is 19407.

It is a perfect power (a square), and thus also a powerful number.

376631649 is a `hidden beast` number, since 3 + 7 + 6 + 631 + 6 + 4 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 19421649 + 357210000 = 4407^2 + 18900^2 .

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 376631649 - 2⁹ = 376631137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (376631639) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 54987 + ... + 61455.

Almost surely, 2^376631649 is an apocalyptic number.

376631649 is the 19407-th square number.

376631649 is the 9704-th centered octagonal number.

It is an amenable number.

376631649 is a deficient number, since it is larger than the sum of its proper divisors (167475954).

376631649 is an frugal number, since it uses more digits than its factorization.

376631649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12944 (or 6472 counting only the distinct ones).

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

The cubic root of 376631649 is about 722.1691586006.

It can be divided in two parts, 376 and 631649, that added together give a square (632025 = 795²).

The spelling of 376631649 in words is "three hundred seventy-six million, six hundred thirty-one thousand, six hundred forty-nine".