90923623 has 16 divisors (see below), whose sum is σ = 110062080. Its totient is φ = 73424736.

The previous prime is 90923621. The next prime is 90923639. The reversal of 90923623 is 32632909.

It is not a de Polignac number, because 90923623 - 2¹ = 90923621 is a prime.

It is a super-2 number, since 2×90923623² = 16534210438892258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90923621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6573 + ... + 15001.

It is an arithmetic number, because the mean of its divisors is an integer number (6878880).

Almost surely, 2^90923623 is an apocalyptic number.

90923623 is a deficient number, since it is larger than the sum of its proper divisors (19138457).

90923623 is a wasteful number, since it uses less digits than its factorization.

90923623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8526.

The product of its (nonzero) digits is 17496, while the sum is 34.

The square root of 90923623 is about 9535.3879312800. The cubic root of 90923623 is about 449.6682707435.

The spelling of 90923623 in words is "ninety million, nine hundred twenty-three thousand, six hundred twenty-three".