90543712 has 24 divisors (see below), whose sum is σ = 203723856. Its totient is φ = 38804352.

The previous prime is 90543707. The next prime is 90543731. The reversal of 90543712 is 21734509.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 201883 + ... + 202330.

It is an arithmetic number, because the mean of its divisors is an integer number (8488494).

Almost surely, 2^90543712 is an apocalyptic number.

It is an amenable number.

90543712 is an abundant number, since it is smaller than the sum of its proper divisors (113180144).

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

90543712 is a wasteful number, since it uses less digits than its factorization.

90543712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404230 (or 404222 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 90543712 is about 9515.4459695802. The cubic root of 90543712 is about 449.0411054905.

The spelling of 90543712 in words is "ninety million, five hundred forty-three thousand, seven hundred twelve".