399795097 has 8 divisors (see below), whose sum is σ = 436975616. Its totient is φ = 363532752.

The previous prime is 399795079. The next prime is 399795119. The reversal of 399795097 is 790597993.

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

It is a cyclic number.

It is not a de Polignac number, because 399795097 - 2²⁷ = 265577369 is a prime.

It is a super-2 number, since 2×399795097² = 319672239170478818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (399795007) 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, 228633 + ... + 230374.

It is an arithmetic number, because the mean of its divisors is an integer number (54621952).

Almost surely, 2^399795097 is an apocalyptic number.

It is an amenable number.

399795097 is a deficient number, since it is larger than the sum of its proper divisors (37180519).

399795097 is a wasteful number, since it uses less digits than its factorization.

399795097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459087.

The product of its (nonzero) digits is 4822335, while the sum is 58.

The square root of 399795097 is about 19994.8767688126. The cubic root of 399795097 is about 736.6804667216.

The spelling of 399795097 in words is "three hundred ninety-nine million, seven hundred ninety-five thousand, ninety-seven".