47440079 has 4 divisors (see below), whose sum is σ = 47454240. Its totient is φ = 47425920.

The previous prime is 47440073. The next prime is 47440091. The reversal of 47440079 is 97004474.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47440079 is a prime.

It is a super-2 number, since 2×47440079² = 4501122191052482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47440073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1082 + ... + 9800.

It is an arithmetic number, because the mean of its divisors is an integer number (11863560).

Almost surely, 2^47440079 is an apocalyptic number.

47440079 is a deficient number, since it is larger than the sum of its proper divisors (14161).

47440079 is an equidigital number, since it uses as much as digits as its factorization.

47440079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14160.

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 47440079 is about 6887.6758779722. The cubic root of 47440079 is about 362.0054713620.

The spelling of 47440079 in words is "forty-seven million, four hundred forty thousand, seventy-nine".