620902798 has 16 divisors (see below), whose sum is σ = 986883264. Its totient is φ = 291969280.

The previous prime is 620902787. The next prime is 620902819. The reversal of 620902798 is 897209026.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44418 + ... + 56698.

It is an arithmetic number, because the mean of its divisors is an integer number (61680204).

Almost surely, 2^620902798 is an apocalyptic number.

620902798 is a deficient number, since it is larger than the sum of its proper divisors (365980466).

620902798 is a wasteful number, since it uses less digits than its factorization.

620902798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13787.

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 620902798 is about 24917.9212214823. The cubic root of 620902798 is about 853.1155780163.

The spelling of 620902798 in words is "six hundred twenty million, nine hundred two thousand, seven hundred ninety-eight".