890967330921 has 32 divisors (see below), whose sum is σ = 1247922453888. Its totient is φ = 564813250560.

The previous prime is 890967330917. The next prime is 890967330947. The reversal of 890967330921 is 129033769098.

890967330921 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 890967330921 - 2² = 890967330917 is a prime.

It is not an unprimeable number, because it can be changed into a prime (890927330921) 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, 1217286 + ... + 1806576.

It is an arithmetic number, because the mean of its divisors is an integer number (38997576684).

Almost surely, 2^890967330921 is an apocalyptic number.

It is an amenable number.

890967330921 is a deficient number, since it is larger than the sum of its proper divisors (356955122967).

890967330921 is a wasteful number, since it uses less digits than its factorization.

890967330921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 589641.

The product of its (nonzero) digits is 4408992, while the sum is 57.

The spelling of 890967330921 in words is "eight hundred ninety billion, nine hundred sixty-seven million, three hundred thirty thousand, nine hundred twenty-one".