970804021 has 16 divisors (see below), whose sum is σ = 1089790848. Its totient is φ = 857272000.

The previous prime is 970804019. The next prime is 970804063. The reversal of 970804021 is 120408079.

It is a cyclic number.

It is not a de Polignac number, because 970804021 - 2¹ = 970804019 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (970804321) 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, 50640 + ... + 67126.

It is an arithmetic number, because the mean of its divisors is an integer number (68111928).

Almost surely, 2^970804021 is an apocalyptic number.

It is an amenable number.

970804021 is a deficient number, since it is larger than the sum of its proper divisors (118986827).

970804021 is a wasteful number, since it uses less digits than its factorization.

970804021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16652.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 970804021 is about 31157.7281103742. The cubic root of 970804021 is about 990.1717285337.

It can be divided in two parts, 97080 and 4021, that added together give a palindrome (101101).

The spelling of 970804021 in words is "nine hundred seventy million, eight hundred four thousand, twenty-one".