881521923 has 16 divisors (see below), whose sum is σ = 1181808000. Its totient is φ = 584468736.

The previous prime is 881521867. The next prime is 881521937. The reversal of 881521923 is 329125188.

It is not a de Polignac number, because 881521923 - 2¹² = 881517827 is a prime.

It is not an unprimeable number, because it can be changed into a prime (881521523) 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, 518611 + ... + 520307.

It is an arithmetic number, because the mean of its divisors is an integer number (73863000).

Almost surely, 2^881521923 is an apocalyptic number.

881521923 is a deficient number, since it is larger than the sum of its proper divisors (300286077).

881521923 is a wasteful number, since it uses less digits than its factorization.

881521923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2546.

The product of its digits is 34560, while the sum is 39.

The square root of 881521923 is about 29690.4348738782. The cubic root of 881521923 is about 958.8360905249.

The spelling of 881521923 in words is "eight hundred eighty-one million, five hundred twenty-one thousand, nine hundred twenty-three".