893689629921 has 32 divisors (see below), whose sum is σ = 1447682759040. Its totient is φ = 540379123200.

The previous prime is 893689629869. The next prime is 893689629923. The reversal of 893689629921 is 129926986398.

It is not a de Polignac number, because 893689629921 - 2²⁷ = 893555412193 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 893689629921.

It is not an unprimeable number, because it can be changed into a prime (893689629923) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3346060 + ... + 3603261.

It is an arithmetic number, because the mean of its divisors is an integer number (45240086220).

Almost surely, 2^893689629921 is an apocalyptic number.

It is an amenable number.

893689629921 is a deficient number, since it is larger than the sum of its proper divisors (553993129119).

893689629921 is a wasteful number, since it uses less digits than its factorization.

893689629921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6949774 (or 6949768 counting only the distinct ones).

The product of its digits is 181398528, while the sum is 72.

The spelling of 893689629921 in words is "eight hundred ninety-three billion, six hundred eighty-nine million, six hundred twenty-nine thousand, nine hundred twenty-one".