376786921 has 27 divisors (see below), whose sum is σ = 455546109. Its totient is φ = 310731288.

The previous prime is 376786919. The next prime is 376786931. The reversal of 376786921 is 129687673.

It is a happy number.

The square root of 376786921 is 19411.

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

It is not a de Polignac number, because 376786921 - 2¹ = 376786919 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (376786901) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 6386190 + ... + 6386248.

Almost surely, 2^376786921 is an apocalyptic number.

376786921 is the 19411-st square number.

376786921 is the 9706-th centered octagonal number.

It is an amenable number.

376786921 is a deficient number, since it is larger than the sum of its proper divisors (78759188).

376786921 is an frugal number, since it uses more digits than its factorization.

376786921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226 (or 113 counting only the distinct ones).

The product of its digits is 762048, while the sum is 49.

The cubic root of 376786921 is about 722.2683866253.

Multiplying 376786921 by its sum of digits (49), we get a square (18462559129 = 135877²).

376786921 divided by its sum of digits (49) gives a square (7689529 = 2773²).

The spelling of 376786921 in words is "three hundred seventy-six million, seven hundred eighty-six thousand, nine hundred twenty-one".