901623 has 16 divisors (see below), whose sum is σ = 1278720. Its totient is φ = 563904.

The previous prime is 901613. The next prime is 901643. The reversal of 901623 is 326109.

It is not a de Polignac number, because 901623 - 2⁵ = 901591 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 901623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (901613) 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, 4948 + ... + 5126.

It is an arithmetic number, because the mean of its divisors is an integer number (79920).

2⁹⁰¹⁶²³ is an apocalyptic number.

901623 is a deficient number, since it is larger than the sum of its proper divisors (377097).

901623 is a wasteful number, since it uses less digits than its factorization.

901623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 901623 is about 949.5383088638. The cubic root of 901623 is about 96.6069402487.

It can be divided in two parts, 90 and 1623, that multiplied together give a triangular number (146070 = T₅₄₀).

The spelling of 901623 in words is "nine hundred one thousand, six hundred twenty-three".