399714507 has 10 divisors (see below), whose sum is σ = 597104508. Its totient is φ = 266476284.

The previous prime is 399714487. The next prime is 399714509. The reversal of 399714507 is 705417993.

It is not a de Polignac number, because 399714507 - 2¹⁸ = 399452363 is a prime.

It is not an unprimeable number, because it can be changed into a prime (399714509) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2467293 + ... + 2467454.

Almost surely, 2^399714507 is an apocalyptic number.

399714507 is a deficient number, since it is larger than the sum of its proper divisors (197390001).

399714507 is an equidigital number, since it uses as much as digits as its factorization.

399714507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4934759 (or 4934750 counting only the distinct ones).

The product of its (nonzero) digits is 238140, while the sum is 45.

The square root of 399714507 is about 19992.8614010101. The cubic root of 399714507 is about 736.6309638064.

The spelling of 399714507 in words is "three hundred ninety-nine million, seven hundred fourteen thousand, five hundred seven".