45072879 has 4 divisors (see below), whose sum is σ = 60097176. Its totient is φ = 30048584.

The previous prime is 45072877. The next prime is 45072913. The reversal of 45072879 is 97827054.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 45072879 - 2¹ = 45072877 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 45072879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45072877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7512144 + ... + 7512149.

It is an arithmetic number, because the mean of its divisors is an integer number (15024294).

Almost surely, 2^45072879 is an apocalyptic number.

45072879 is a deficient number, since it is larger than the sum of its proper divisors (15024297).

45072879 is a wasteful number, since it uses less digits than its factorization.

45072879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15024296.

The product of its (nonzero) digits is 141120, while the sum is 42.

The square root of 45072879 is about 6713.6338148576. The cubic root of 45072879 is about 355.8812437919.

The spelling of 45072879 in words is "forty-five million, seventy-two thousand, eight hundred seventy-nine".