90969012 has 36 divisors (see below), whose sum is σ = 230726496. Its totient is φ = 30220560.

The previous prime is 90969007. The next prime is 90969029. The reversal of 90969012 is 21096909.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×90969012² = 16550722288512288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an alternating number because its digits alternate between odd and even.

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 11 ways as a sum of consecutive naturals, for example, 6937 + ... + 15167.

Almost surely, 2^90969012 is an apocalyptic number.

It is an amenable number.

90969012 is an abundant number, since it is smaller than the sum of its proper divisors (139757484).

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

90969012 is a wasteful number, since it uses less digits than its factorization.

90969012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8548 (or 8543 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 36.

The square root of 90969012 is about 9537.7676633476. The cubic root of 90969012 is about 449.7430829768.

The spelling of 90969012 in words is "ninety million, nine hundred sixty-nine thousand, twelve".