376461721 has 4 divisors (see below), whose sum is σ = 376633444. Its totient is φ = 376290000.

The previous prime is 376461707. The next prime is 376461727. The reversal of 376461721 is 127164673.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 127164673 = 4663 ⋅27271.

It can be written as a sum of positive squares in 2 ways, for example, as 295461721 + 81000000 = 17189^2 + 9000^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-376461721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (376461727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82530 + ... + 86971.

It is an arithmetic number, because the mean of its divisors is an integer number (94158361).

Almost surely, 2^376461721 is an apocalyptic number.

It is an amenable number.

376461721 is a deficient number, since it is larger than the sum of its proper divisors (171723).

376461721 is a wasteful number, since it uses less digits than its factorization.

376461721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171722.

The product of its digits is 42336, while the sum is 37.

The square root of 376461721 is about 19402.6214981378. The cubic root of 376461721 is about 722.0605332621.

The spelling of 376461721 in words is "three hundred seventy-six million, four hundred sixty-one thousand, seven hundred twenty-one".