7973718 has 8 divisors (see below), whose sum is σ = 15947448. Its totient is φ = 2657904.

The previous prime is 7973701. The next prime is 7973723. The reversal of 7973718 is 8173797.

It is a happy number.

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

7973718 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 7973718.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 664471 + ... + 664482.

It is an arithmetic number, because the mean of its divisors is an integer number (1993431).

Almost surely, 2^7973718 is an apocalyptic number.

7973718 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7973718 is a wasteful number, since it uses less digits than its factorization.

7973718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1328958.

The product of its digits is 74088, while the sum is 42.

The square root of 7973718 is about 2823.7772575046. Note that the first 3 decimals coincide. The cubic root of 7973718 is about 199.7807430531.

The spelling of 7973718 in words is "seven million, nine hundred seventy-three thousand, seven hundred eighteen".