90439794 has 32 divisors (see below), whose sum is σ = 202440000. Its totient is φ = 29927232.

The previous prime is 90439787. The next prime is 90439801. The reversal of 90439794 is 49793409.

It is an interprime number because it is at equal distance from previous prime (90439787) and next prime (90439801).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1482 + ... + 13530.

It is an arithmetic number, because the mean of its divisors is an integer number (6326250).

Almost surely, 2^90439794 is an apocalyptic number.

90439794 is an abundant number, since it is smaller than the sum of its proper divisors (112000206).

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

90439794 is a wasteful number, since it uses less digits than its factorization.

90439794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12199 (or 12193 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The square root of 90439794 is about 9509.9839116583. The cubic root of 90439794 is about 448.8692499450.

The spelling of 90439794 in words is "ninety million, four hundred thirty-nine thousand, seven hundred ninety-four".