7928973 has 24 divisors (see below), whose sum is σ = 12437880. Its totient is φ = 4867200.

The previous prime is 7928969. The next prime is 7929007. The reversal of 7928973 is 3798297.

It can be written as a sum of positive squares in 4 ways, for example, as 459684 + 7469289 = 678^2 + 2733^2 .

It is not a de Polignac number, because 7928973 - 2² = 7928969 is a prime.

It is a super-2 number, since 2×7928973² = 125737225669458, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7928903) 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, 19573 + ... + 19973.

It is an arithmetic number, because the mean of its divisors is an integer number (518245).

Almost surely, 2^7928973 is an apocalyptic number.

It is an amenable number.

7928973 is a deficient number, since it is larger than the sum of its proper divisors (4508907).

7928973 is a wasteful number, since it uses less digits than its factorization.

7928973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446 (or 417 counting only the distinct ones).

The product of its digits is 190512, while the sum is 45.

The square root of 7928973 is about 2815.8432129648. The cubic root of 7928973 is about 199.4063479631.

The spelling of 7928973 in words is "seven million, nine hundred twenty-eight thousand, nine hundred seventy-three".