881999953 has 2 divisors, whose sum is σ = 881999954. Its totient is φ = 881999952.

The previous prime is 881999891. The next prime is 881999959. The reversal of 881999953 is 359999188.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 598144849 + 283855104 = 24457^2 + 16848^2 .

It is a cyclic number.

It is not a de Polignac number, because 881999953 - 2²¹ = 879902801 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 881999891 and 881999900.

It is not a weakly prime, because it can be changed into another prime (881999959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 440999976 + 440999977.

It is an arithmetic number, because the mean of its divisors is an integer number (440999977).

Almost surely, 2^881999953 is an apocalyptic number.

It is an amenable number.

881999953 is a deficient number, since it is larger than the sum of its proper divisors (1).

881999953 is an equidigital number, since it uses as much as digits as its factorization.

881999953 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6298560, while the sum is 61.

The square root of 881999953 is about 29698.4840185488. The cubic root of 881999953 is about 959.0093777977.

The spelling of 881999953 in words is "eight hundred eighty-one million, nine hundred ninety-nine thousand, nine hundred fifty-three".