964808421 has 16 divisors (see below), whose sum is σ = 1308498048. Its totient is φ = 632217600.

The previous prime is 964808413. The next prime is 964808437. The reversal of 964808421 is 124808469.

It is not a de Polignac number, because 964808421 - 2³ = 964808413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (964808441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65061 + ... + 78501.

It is an arithmetic number, because the mean of its divisors is an integer number (81781128).

Almost surely, 2^964808421 is an apocalyptic number.

It is an amenable number.

964808421 is a deficient number, since it is larger than the sum of its proper divisors (343689627).

964808421 is a wasteful number, since it uses less digits than its factorization.

964808421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13852.

The product of its (nonzero) digits is 110592, while the sum is 42.

The square root of 964808421 is about 31061.3654078503. The cubic root of 964808421 is about 988.1291133232.

The spelling of 964808421 in words is "nine hundred sixty-four million, eight hundred eight thousand, four hundred twenty-one".