87616494 has 24 divisors (see below), whose sum is σ = 216955440. Its totient is φ = 25033248.

The previous prime is 87616493. The next prime is 87616523. The reversal of 87616494 is 49461678.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87616493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 347559 + ... + 347810.

It is an arithmetic number, because the mean of its divisors is an integer number (9039810).

Almost surely, 2^87616494 is an apocalyptic number.

87616494 is an abundant number, since it is smaller than the sum of its proper divisors (129338946).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87616494 is a wasteful number, since it uses less digits than its factorization.

87616494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695384 (or 695381 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 87616494 is about 9360.3682619863. The cubic root of 87616494 is about 444.1489334797.

The spelling of 87616494 in words is "eighty-seven million, six hundred sixteen thousand, four hundred ninety-four".