90068604 has 12 divisors (see below), whose sum is σ = 210160104. Its totient is φ = 30022864.

The previous prime is 90068603. The next prime is 90068639. The reversal of 90068604 is 40686009.

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

It is a super-2 number, since 2×90068604² = 16224706853017632, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90068603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3752847 + ... + 3752870.

It is an arithmetic number, because the mean of its divisors is an integer number (17513342).

Almost surely, 2^90068604 is an apocalyptic number.

It is an amenable number.

90068604 is an abundant number, since it is smaller than the sum of its proper divisors (120091500).

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

90068604 is a wasteful number, since it uses less digits than its factorization.

90068604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7505724 (or 7505722 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 90068604 is about 9490.4480400032. The cubic root of 90068604 is about 448.2543132508.

The spelling of 90068604 in words is "ninety million, sixty-eight thousand, six hundred four".