398955083 has 4 divisors (see below), whose sum is σ = 403068120. Its totient is φ = 394842048.

The previous prime is 398955071. The next prime is 398955101. The reversal of 398955083 is 380559893.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 398955083 - 2¹⁸ = 398692939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (398955023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2056373 + ... + 2056566.

It is an arithmetic number, because the mean of its divisors is an integer number (100767030).

Almost surely, 2^398955083 is an apocalyptic number.

398955083 is a deficient number, since it is larger than the sum of its proper divisors (4113037).

398955083 is an equidigital number, since it uses as much as digits as its factorization.

398955083 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4113036.

The product of its (nonzero) digits is 1166400, while the sum is 50.

The square root of 398955083 is about 19973.8599925002. The cubic root of 398955083 is about 736.1641557235.

The spelling of 398955083 in words is "three hundred ninety-eight million, nine hundred fifty-five thousand, eighty-three".