90699942 has 16 divisors (see below), whose sum is σ = 185260032. Its totient is φ = 29589960.

The previous prime is 90699929. The next prime is 90699953. The reversal of 90699942 is 24999609.

It is a junction number, because it is equal to n+sod(n) for n = 90699891 and 90699900.

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, 160534 + ... + 161097.

It is an arithmetic number, because the mean of its divisors is an integer number (11578752).

Almost surely, 2^90699942 is an apocalyptic number.

90699942 is an abundant number, since it is smaller than the sum of its proper divisors (94560090).

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

90699942 is a wasteful number, since it uses less digits than its factorization.

90699942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321683.

The product of its (nonzero) digits is 314928, while the sum is 48.

The square root of 90699942 is about 9523.6517155973. The cubic root of 90699942 is about 449.2992253155.

The spelling of 90699942 in words is "ninety million, six hundred ninety-nine thousand, nine hundred forty-two".