85506744 has 16 divisors (see below), whose sum is σ = 213766920. Its totient is φ = 28502240.

The previous prime is 85506737. The next prime is 85506793. The reversal of 85506744 is 44760558.

It is a super-2 number, since 2×85506744² = 14622806538963072, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1781367 + ... + 1781414.

Almost surely, 2^85506744 is an apocalyptic number.

It is an amenable number.

85506744 is an abundant number, since it is smaller than the sum of its proper divisors (128260176).

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

85506744 is a wasteful number, since it uses less digits than its factorization.

85506744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3562790 (or 3562786 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 39.

The square root of 85506744 is about 9246.9856710173. The cubic root of 85506744 is about 440.5549883834.

The spelling of 85506744 in words is "eighty-five million, five hundred six thousand, seven hundred forty-four".