79907745 has 8 divisors (see below), whose sum is σ = 127852416. Its totient is φ = 42617456.

The previous prime is 79907741. The next prime is 79907747. The reversal of 79907745 is 54770997.

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

It is a cyclic number.

It is not a de Polignac number, because 79907745 - 2² = 79907741 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 79907694 and 79907703.

It is not an unprimeable number, because it can be changed into a prime (79907741) 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, 2663577 + ... + 2663606.

It is an arithmetic number, because the mean of its divisors is an integer number (15981552).

Almost surely, 2^79907745 is an apocalyptic number.

It is an amenable number.

79907745 is a deficient number, since it is larger than the sum of its proper divisors (47944671).

79907745 is a wasteful number, since it uses less digits than its factorization.

79907745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5327191.

The product of its (nonzero) digits is 555660, while the sum is 48.

The square root of 79907745 is about 8939.1132110518. The cubic root of 79907745 is about 430.7212431540.

The spelling of 79907745 in words is "seventy-nine million, nine hundred seven thousand, seven hundred forty-five".