90396723 has 16 divisors (see below), whose sum is σ = 122069376. Its totient is φ = 59498880.

The previous prime is 90396689. The next prime is 90396727. The reversal of 90396723 is 32769309.

It is not a de Polignac number, because 90396723 - 2⁶ = 90396659 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90396727) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 158028 + ... + 158598.

It is an arithmetic number, because the mean of its divisors is an integer number (7629336).

Almost surely, 2^90396723 is an apocalyptic number.

90396723 is a deficient number, since it is larger than the sum of its proper divisors (31672653).

90396723 is a wasteful number, since it uses less digits than its factorization.

90396723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1154.

The product of its (nonzero) digits is 61236, while the sum is 39.

The square root of 90396723 is about 9507.7191271093. The cubic root of 90396723 is about 448.7979822117.

It can be divided in two parts, 90396 and 723, that added together give a palindrome (91119).

The spelling of 90396723 in words is "ninety million, three hundred ninety-six thousand, seven hundred twenty-three".