79449945 has 8 divisors (see below), whose sum is σ = 127119936. Its totient is φ = 42373296.

The previous prime is 79449943. The next prime is 79449967. The reversal of 79449945 is 54994497.

It is a happy number.

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

It is not a de Polignac number, because 79449945 - 2¹ = 79449943 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (79449941) 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, 2648317 + ... + 2648346.

It is an arithmetic number, because the mean of its divisors is an integer number (15889992).

Almost surely, 2^79449945 is an apocalyptic number.

It is an amenable number.

79449945 is a deficient number, since it is larger than the sum of its proper divisors (47669991).

79449945 is a wasteful number, since it uses less digits than its factorization.

79449945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5296671.

The product of its digits is 1632960, while the sum is 51.

The square root of 79449945 is about 8913.4698630780. The cubic root of 79449945 is about 429.8971179860.

The spelling of 79449945 in words is "seventy-nine million, four hundred forty-nine thousand, nine hundred forty-five".