79449745 has 8 divisors (see below), whose sum is σ = 98415360. Its totient is φ = 61509360.

The previous prime is 79449743. The next prime is 79449761. The reversal of 79449745 is 54794497.

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

It is not a de Polignac number, because 79449745 - 2¹ = 79449743 is a prime.

It is not an unprimeable number, because it can be changed into a prime (79449743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 256135 + ... + 256444.

It is an arithmetic number, because the mean of its divisors is an integer number (12301920).

Almost surely, 2^79449745 is an apocalyptic number.

It is an amenable number.

79449745 is a deficient number, since it is larger than the sum of its proper divisors (18965615).

79449745 is a wasteful number, since it uses less digits than its factorization.

79449745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512615.

The product of its digits is 1270080, while the sum is 49.

The square root of 79449745 is about 8913.4586440955. The cubic root of 79449745 is about 429.8967572578.

It can be divided in two parts, 7944 and 9745, that added together give a square (17689 = 133²).

The spelling of 79449745 in words is "seventy-nine million, four hundred forty-nine thousand, seven hundred forty-five".