85503408 has 20 divisors (see below), whose sum is σ = 220883928. Its totient is φ = 28501120.

The previous prime is 85503403. The next prime is 85503413. The reversal of 85503408 is 80430558.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (85503403) and next prime (85503413).

It is a super-2 number, since 2×85503408² = 14621665559228928, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (85503403) 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, 890613 + ... + 890708.

Almost surely, 2^85503408 is an apocalyptic number.

It is an amenable number.

85503408 is an abundant number, since it is smaller than the sum of its proper divisors (135380520).

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

85503408 is a wasteful number, since it uses less digits than its factorization.

85503408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1781332 (or 1781326 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 85503408 is about 9246.8052861515. The cubic root of 85503408 is about 440.5492589696.

The spelling of 85503408 in words is "eighty-five million, five hundred three thousand, four hundred eight".