923612881 has 3 divisors (see below), whose sum is σ = 923643273. Its totient is φ = 923582490.

The previous prime is 923612869. The next prime is 923612891. The reversal of 923612881 is 188216329.

The square root of 923612881 is 30391.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 923612881 - 2¹⁵ = 923580113 is a prime.

It is a super-4 number, since 4×923612881⁴ (a number of 37 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (923612831) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 15196 + ... + 45586.

It is an arithmetic number, because the mean of its divisors is an integer number (307881091).

Almost surely, 2^923612881 is an apocalyptic number.

923612881 is the 30391-st square number.

923612881 is the 15196-th centered octagonal number.

It is an amenable number.

923612881 is a deficient number, since it is larger than the sum of its proper divisors (30392).

923612881 is an frugal number, since it uses more digits than its factorization.

923612881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60782 (or 30391 counting only the distinct ones).

The product of its digits is 41472, while the sum is 40.

The cubic root of 923612881 is about 973.8602965164.

The spelling of 923612881 in words is "nine hundred twenty-three million, six hundred twelve thousand, eight hundred eighty-one".