921883882 has 4 divisors (see below), whose sum is σ = 1382825826. Its totient is φ = 460941940.

The previous prime is 921883877. The next prime is 921883883. The reversal of 921883882 is 288388129.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 288388129 = 4003 ⋅72043.

It can be written as a sum of positive squares in only one way, i.e., 777907881 + 143976001 = 27891^2 + 11999^2 .

It is not an unprimeable number, because it can be changed into a prime (921883883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 230470969 + ... + 230470972.

Almost surely, 2^921883882 is an apocalyptic number.

921883882 is a deficient number, since it is larger than the sum of its proper divisors (460941944).

921883882 is a wasteful number, since it uses less digits than its factorization.

921883882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460941943.

The product of its digits is 442368, while the sum is 49.

The square root of 921883882 is about 30362.5407698368. The cubic root of 921883882 is about 973.2522296165.

The spelling of 921883882 in words is "nine hundred twenty-one million, eight hundred eighty-three thousand, eight hundred eighty-two".