398008796 has 6 divisors (see below), whose sum is σ = 696515400. Its totient is φ = 199004396.

The previous prime is 398008763. The next prime is 398008799. The reversal of 398008796 is 697800893.

It is a super-2 number, since 2×398008796² = 316822003386739232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398008799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49751096 + ... + 49751103.

It is an arithmetic number, because the mean of its divisors is an integer number (116085900).

Almost surely, 2^398008796 is an apocalyptic number.

It is an amenable number.

398008796 is a deficient number, since it is larger than the sum of its proper divisors (298506604).

398008796 is a wasteful number, since it uses less digits than its factorization.

398008796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99502203 (or 99502201 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 50.

The square root of 398008796 is about 19950.1577938622. The cubic root of 398008796 is about 735.5816556683.

The spelling of 398008796 in words is "three hundred ninety-eight million, eight thousand, seven hundred ninety-six".