45979973 has 8 divisors (see below), whose sum is σ = 49793016. Its totient is φ = 42206400.

The previous prime is 45979963. The next prime is 45979979. The reversal of 45979973 is 37997954.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3378244 + 42601729 = 1838^2 + 6527^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45979973 is a prime.

It is a super-2 number, since 2×45979973² = 4228315834161458, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45979979) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7418 + ... + 12123.

It is an arithmetic number, because the mean of its divisors is an integer number (6224127).

Almost surely, 2^45979973 is an apocalyptic number.

It is an amenable number.

45979973 is a deficient number, since it is larger than the sum of its proper divisors (3813043).

45979973 is a wasteful number, since it uses less digits than its factorization.

45979973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19735.

The product of its digits is 2143260, while the sum is 53.

The square root of 45979973 is about 6780.8534123663. The cubic root of 45979973 is about 358.2527812205.

The spelling of 45979973 in words is "forty-five million, nine hundred seventy-nine thousand, nine hundred seventy-three".