90023794 has 16 divisors (see below), whose sum is σ = 161036928. Its totient is φ = 36904032.

The previous prime is 90023779. The next prime is 90023797. The reversal of 90023794 is 49732009.

It is not an unprimeable number, because it can be changed into a prime (90023797) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139467 + ... + 140110.

It is an arithmetic number, because the mean of its divisors is an integer number (10064808).

Almost surely, 2^90023794 is an apocalyptic number.

90023794 is a deficient number, since it is larger than the sum of its proper divisors (71013134).

90023794 is a wasteful number, since it uses less digits than its factorization.

90023794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279609.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 90023794 is about 9488.0869515409. The cubic root of 90023794 is about 448.1799639702.

The spelling of 90023794 in words is "ninety million, twenty-three thousand, seven hundred ninety-four".