85408516 has 12 divisors (see below), whose sum is σ = 150642688. Its totient is φ = 42367752.

The previous prime is 85408513. The next prime is 85408537. The reversal of 85408516 is 61580458.

It is a super-2 number, since 2×85408516² = 14589229210644512, which contains 22 as substring.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (85408511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83556 + ... + 84571.

Almost surely, 2^85408516 is an apocalyptic number.

It is an amenable number.

85408516 is a deficient number, since it is larger than the sum of its proper divisors (65234172).

85408516 is a wasteful number, since it uses less digits than its factorization.

85408516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168258 (or 168256 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 37.

The square root of 85408516 is about 9241.6727923034. The cubic root of 85408516 is about 440.3862242409.

The spelling of 85408516 in words is "eighty-five million, four hundred eight thousand, five hundred sixteen".