616791902 has 4 divisors (see below), whose sum is σ = 925187856. Its totient is φ = 308395950.

The previous prime is 616791859. The next prime is 616791919. The reversal of 616791902 is 209197616.

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

It is a self number, because there is not a number n which added to its sum of digits gives 616791902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 154197974 + ... + 154197977.

It is an arithmetic number, because the mean of its divisors is an integer number (231296964).

Almost surely, 2^616791902 is an apocalyptic number.

616791902 is a deficient number, since it is larger than the sum of its proper divisors (308395954).

616791902 is a wasteful number, since it uses less digits than its factorization.

616791902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308395953.

The product of its (nonzero) digits is 40824, while the sum is 41.

The square root of 616791902 is about 24835.2954884777. The cubic root of 616791902 is about 851.2286278446.

The spelling of 616791902 in words is "six hundred sixteen million, seven hundred ninety-one thousand, nine hundred two".