616089691 has 36 divisors (see below), whose sum is σ = 759021120. Its totient is φ = 498052800.

The previous prime is 616089667. The next prime is 616089697. The reversal of 616089691 is 196980616.

616089691 = 183³ + 184³ + ... + 244³.

It is not a de Polignac number, because 616089691 - 2⁷ = 616089563 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616089697) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 5652145 + ... + 5652253.

It is an arithmetic number, because the mean of its divisors is an integer number (21083920).

Almost surely, 2^616089691 is an apocalyptic number.

616089691 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

616089691 is the 14331-st hex number.

616089691 is a deficient number, since it is larger than the sum of its proper divisors (142931429).

616089691 is a wasteful number, since it uses less digits than its factorization.

616089691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276 (or 208 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 46.

The square root of 616089691 is about 24821.1541029018. The cubic root of 616089691 is about 850.9054669380.

The spelling of 616089691 in words is "six hundred sixteen million, eighty-nine thousand, six hundred ninety-one".