399599097 has 8 divisors (see below), whose sum is σ = 537778656. Its totient is φ = 263909472.

The previous prime is 399599071. The next prime is 399599119. The reversal of 399599097 is 790995993.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 399599097 - 2²⁰ = 398550521 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 399599097.

It is not an unprimeable number, because it can be changed into a prime (399599047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 622108 + ... + 622749.

It is an arithmetic number, because the mean of its divisors is an integer number (67222332).

Almost surely, 2^399599097 is an apocalyptic number.

It is an amenable number.

399599097 is a deficient number, since it is larger than the sum of its proper divisors (138179559).

399599097 is a wasteful number, since it uses less digits than its factorization.

399599097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1244967.

The product of its (nonzero) digits is 6200145, while the sum is 60.

The square root of 399599097 is about 19989.9749124405. The cubic root of 399599097 is about 736.5600608982.

The spelling of 399599097 in words is "three hundred ninety-nine million, five hundred ninety-nine thousand, ninety-seven".