376644613 has 4 divisors (see below), whose sum is σ = 383028480. Its totient is φ = 370260748.

The previous prime is 376644607. The next prime is 376644623. The reversal of 376644613 is 316446673.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 316446673 = 23 ⋅13758551.

It is a cyclic number.

It is not a de Polignac number, because 376644613 - 2²¹ = 374547461 is a prime.

It is a super-2 number, since 2×376644613² = 283722329003839538, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (376644623) 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, 3191845 + ... + 3191962.

It is an arithmetic number, because the mean of its divisors is an integer number (95757120).

Almost surely, 2^376644613 is an apocalyptic number.

It is an amenable number.

376644613 is a deficient number, since it is larger than the sum of its proper divisors (6383867).

376644613 is an equidigital number, since it uses as much as digits as its factorization.

376644613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6383866.

The product of its digits is 217728, while the sum is 40.

The square root of 376644613 is about 19407.3340003206. The cubic root of 376644613 is about 722.1774444095.

The spelling of 376644613 in words is "three hundred seventy-six million, six hundred forty-four thousand, six hundred thirteen".