398248083 has 24 divisors (see below), whose sum is σ = 598398528. Its totient is φ = 264677544.

The previous prime is 398248079. The next prime is 398248099. The reversal of 398248083 is 380842893.

398248083 is a `hidden beast` number, since 3 + 98 + 2 + 480 + 83 = 666.

It is not a de Polignac number, because 398248083 - 2² = 398248079 is a prime.

It is a super-2 number, since 2×398248083² = 317203071226349778, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (398248003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 81960 + ... + 86682.

It is an arithmetic number, because the mean of its divisors is an integer number (24933272).

Almost surely, 2^398248083 is an apocalyptic number.

398248083 is a deficient number, since it is larger than the sum of its proper divisors (200150445).

398248083 is an equidigital number, since it uses as much as digits as its factorization.

398248083 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5085 (or 5073 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The square root of 398248083 is about 19956.1540132361. The cubic root of 398248083 is about 735.7290392330.

The spelling of 398248083 in words is "three hundred ninety-eight million, two hundred forty-eight thousand, eighty-three".