431379 has 16 divisors (see below), whose sum is σ = 688800. Its totient is φ = 265248.

The previous prime is 431377. The next prime is 431381. The reversal of 431379 is 973134.

It is an interprime number because it is at equal distance from previous prime (431377) and next prime (431381).

It is not a de Polignac number, because 431379 - 2¹ = 431377 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a plaindrome in base 7.

It is not an unprimeable number, because it can be changed into a prime (431377) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 264 + ... + 965.

It is an arithmetic number, because the mean of its divisors is an integer number (43050).

2⁴³¹³⁷⁹ is an apocalyptic number.

431379 is a deficient number, since it is larger than the sum of its proper divisors (257421).

431379 is a wasteful number, since it uses less digits than its factorization.

431379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1251 (or 1245 counting only the distinct ones).

The product of its digits is 2268, while the sum is 27.

The square root of 431379 is about 656.7944884056. The cubic root of 431379 is about 75.5590228929.

The spelling of 431379 in words is "four hundred thirty-one thousand, three hundred seventy-nine".