90702064 has 20 divisors (see below), whose sum is σ = 183376656. Its totient is φ = 43379072.

The previous prime is 90702047. The next prime is 90702071. The reversal of 90702064 is 46020709.

It is a zygodrome in base 4.

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, 122869 + ... + 123604.

Almost surely, 2^90702064 is an apocalyptic number.

It is an amenable number.

90702064 is an abundant number, since it is smaller than the sum of its proper divisors (92674592).

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

90702064 is a wasteful number, since it uses less digits than its factorization.

90702064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246504 (or 246498 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 90702064 is about 9523.7631217917. The cubic root of 90702064 is about 449.3027291969.

The spelling of 90702064 in words is "ninety million, seven hundred two thousand, sixty-four".