399795098 has 8 divisors (see below), whose sum is σ = 609523860. Its totient is φ = 196620480.

The previous prime is 399795079. The next prime is 399795119. The reversal of 399795098 is 890597993.

It can be written as a sum of positive squares in 2 ways, for example, as 286861969 + 112933129 = 16937^2 + 10627^2 .

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

It is a super-2 number, since 2×399795098² = 319672240769659208, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1638383 + ... + 1638626.

Almost surely, 2^399795098 is an apocalyptic number.

399795098 is a deficient number, since it is larger than the sum of its proper divisors (209728762).

399795098 is a wasteful number, since it uses less digits than its factorization.

399795098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3277072.

The product of its (nonzero) digits is 5511240, while the sum is 59.

The square root of 399795098 is about 19994.8767938190. The cubic root of 399795098 is about 736.6804673359.

The spelling of 399795098 in words is "three hundred ninety-nine million, seven hundred ninety-five thousand, ninety-eight".