90104212 has 24 divisors (see below), whose sum is σ = 172347840. Its totient is φ = 40877760.

The previous prime is 90104207. The next prime is 90104227. The reversal of 90104212 is 21240109.

It is a self number, because there is not a number n which added to its sum of digits gives 90104212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25489 + ... + 28807.

It is an arithmetic number, because the mean of its divisors is an integer number (7181160).

Almost surely, 2^90104212 is an apocalyptic number.

It is an amenable number.

90104212 is a deficient number, since it is larger than the sum of its proper divisors (82243628).

90104212 is a wasteful number, since it uses less digits than its factorization.

90104212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3951 (or 3949 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 90104212 is about 9492.3238461401. The cubic root of 90104212 is about 448.3133768827.

The spelling of 90104212 in words is "ninety million, one hundred four thousand, two hundred twelve".