434131387 has 2 divisors, whose sum is σ = 434131388. Its totient is φ = 434131386.

The previous prime is 434131367. The next prime is 434131441. The reversal of 434131387 is 783131434.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 434131387 - 2⁷ = 434131259 is a prime.

It is a super-2 number, since 2×434131387² = 376940122357087538, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (434131337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 217065693 + 217065694.

It is an arithmetic number, because the mean of its divisors is an integer number (217065694).

Almost surely, 2^434131387 is an apocalyptic number.

434131387 is a deficient number, since it is larger than the sum of its proper divisors (1).

434131387 is an equidigital number, since it uses as much as digits as its factorization.

434131387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 34.

The square root of 434131387 is about 20835.8198062855. The cubic root of 434131387 is about 757.1938220978.

The spelling of 434131387 in words is "four hundred thirty-four million, one hundred thirty-one thousand, three hundred eighty-seven".