973646121 has 24 divisors (see below), whose sum is σ = 1512159840. Its totient is φ = 555627072.

The previous prime is 973646053. The next prime is 973646137. The reversal of 973646121 is 121646379.

It is not a de Polignac number, because 973646121 - 2²⁵ = 940091689 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 973646121.

It is not an unprimeable number, because it can be changed into a prime (973606121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 117565 + ... + 125573.

It is an arithmetic number, because the mean of its divisors is an integer number (63006660).

Almost surely, 2^973646121 is an apocalyptic number.

It is an amenable number.

973646121 is a deficient number, since it is larger than the sum of its proper divisors (538513719).

973646121 is a wasteful number, since it uses less digits than its factorization.

973646121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8853 (or 8846 counting only the distinct ones).

The product of its digits is 54432, while the sum is 39.

The square root of 973646121 is about 31203.3030463123. The cubic root of 973646121 is about 991.1370539203.

The spelling of 973646121 in words is "nine hundred seventy-three million, six hundred forty-six thousand, one hundred twenty-one".