616986501 has 8 divisors (see below), whose sum is σ = 828170400. Its totient is φ = 408563472.

The previous prime is 616986497. The next prime is 616986509. The reversal of 616986501 is 105689616.

It is a happy number.

616986501 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 616986501 - 2² = 616986497 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616986509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 689695 + ... + 690588.

It is an arithmetic number, because the mean of its divisors is an integer number (103521300).

Almost surely, 2^616986501 is an apocalyptic number.

It is an amenable number.

616986501 is a deficient number, since it is larger than the sum of its proper divisors (211183899).

616986501 is a wasteful number, since it uses less digits than its factorization.

616986501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1380435.

The product of its (nonzero) digits is 77760, while the sum is 42.

The square root of 616986501 is about 24839.2129706237. The cubic root of 616986501 is about 851.3181398401.

The spelling of 616986501 in words is "six hundred sixteen million, nine hundred eighty-six thousand, five hundred one".