431265377 has 4 divisors (see below), whose sum is σ = 442921236. Its totient is φ = 419609520.

The previous prime is 431265371. The next prime is 431265383. The reversal of 431265377 is 773562134.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (431265371) and next prime (431265383).

It can be written as a sum of positive squares in 2 ways, for example, as 222636241 + 208629136 = 14921^2 + 14444^2 .

It is a cyclic number.

It is not a de Polignac number, because 431265377 - 2⁶ = 431265313 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 431265377.

It is not an unprimeable number, because it can be changed into a prime (431265371) 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, 5827874 + ... + 5827947.

It is an arithmetic number, because the mean of its divisors is an integer number (110730309).

Almost surely, 2^431265377 is an apocalyptic number.

It is an amenable number.

431265377 is a deficient number, since it is larger than the sum of its proper divisors (11655859).

431265377 is a wasteful number, since it uses less digits than its factorization.

431265377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11655858.

The product of its digits is 105840, while the sum is 38.

The square root of 431265377 is about 20766.9298886475. The cubic root of 431265377 is about 755.5238835828.

The spelling of 431265377 in words is "four hundred thirty-one million, two hundred sixty-five thousand, three hundred seventy-seven".