90206694 has 24 divisors (see below), whose sum is σ = 196447680. Its totient is φ = 29915088.

The previous prime is 90206663. The next prime is 90206741. The reversal of 90206694 is 49660209.

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, 9174 + ... + 16265.

It is an arithmetic number, because the mean of its divisors is an integer number (8185320).

Almost surely, 2^90206694 is an apocalyptic number.

90206694 is an abundant number, since it is smaller than the sum of its proper divisors (106240986).

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

90206694 is a wasteful number, since it uses less digits than its factorization.

90206694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25644 (or 25641 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 90206694 is about 9497.7204633533. The cubic root of 90206694 is about 448.4832788328.

The spelling of 90206694 in words is "ninety million, two hundred six thousand, six hundred ninety-four".