881985953 has 4 divisors (see below), whose sum is σ = 884603460. Its totient is φ = 879368448.

The previous prime is 881985931. The next prime is 881985967. The reversal of 881985953 is 359589188.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 77299264 + 804686689 = 8792^2 + 28367^2 .

It is a cyclic number.

It is not a de Polignac number, because 881985953 - 2⁶ = 881985889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (881981953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1308248 + ... + 1308921.

It is an arithmetic number, because the mean of its divisors is an integer number (221150865).

Almost surely, 2^881985953 is an apocalyptic number.

It is an amenable number.

881985953 is a deficient number, since it is larger than the sum of its proper divisors (2617507).

881985953 is a wasteful number, since it uses less digits than its factorization.

881985953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2617506.

The product of its digits is 3110400, while the sum is 56.

The square root of 881985953 is about 29698.2483153468. The cubic root of 881985953 is about 959.0043036468.

The spelling of 881985953 in words is "eight hundred eighty-one million, nine hundred eighty-five thousand, nine hundred fifty-three".