90069612 has 12 divisors (see below), whose sum is σ = 210162456. Its totient is φ = 30023200.

The previous prime is 90069607. The next prime is 90069647. The reversal of 90069612 is 21696009.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×90069612² = 16225070011661088, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

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, 3752889 + ... + 3752912.

It is an arithmetic number, because the mean of its divisors is an integer number (17513538).

Almost surely, 2^90069612 is an apocalyptic number.

It is an amenable number.

90069612 is an abundant number, since it is smaller than the sum of its proper divisors (120092844).

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

90069612 is a wasteful number, since it uses less digits than its factorization.

90069612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7505808 (or 7505806 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 90069612 is about 9490.5011458827. The cubic root of 90069612 is about 448.2559854526.

The spelling of 90069612 in words is "ninety million, sixty-nine thousand, six hundred twelve".