641372379 has 32 divisors (see below), whose sum is σ = 966286080. Its totient is φ = 375985152.

The previous prime is 641372371. The next prime is 641372399. The reversal of 641372379 is 973273146.

641372379 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 641372379 - 2³ = 641372371 is a prime.

It is a super-2 number, since 2×641372379² = 822717057088239282, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 641372379.

It is not an unprimeable number, because it can be changed into a prime (641372371) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66204 + ... + 75270.

It is an arithmetic number, because the mean of its divisors is an integer number (30196440).

Almost surely, 2^641372379 is an apocalyptic number.

641372379 is a deficient number, since it is larger than the sum of its proper divisors (324913701).

641372379 is a wasteful number, since it uses less digits than its factorization.

641372379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9179.

The product of its digits is 190512, while the sum is 42.

The square root of 641372379 is about 25325.3307777016. The cubic root of 641372379 is about 862.3894156058.

The spelling of 641372379 in words is "six hundred forty-one million, three hundred seventy-two thousand, three hundred seventy-nine".