47079649 has 4 divisors (see below), whose sum is σ = 47132464. Its totient is φ = 47026836.

The previous prime is 47079631. The next prime is 47079653. The reversal of 47079649 is 94697074.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 94697074 = 2 ⋅47348537.

It is a cyclic number.

It is not a de Polignac number, because 47079649 - 2²³ = 38691041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47079599 and 47079608.

It is not an unprimeable number, because it can be changed into a prime (47076649) 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, 25047 + ... + 26860.

It is an arithmetic number, because the mean of its divisors is an integer number (11783116).

Almost surely, 2^47079649 is an apocalyptic number.

It is an amenable number.

47079649 is a deficient number, since it is larger than the sum of its proper divisors (52815).

47079649 is an equidigital number, since it uses as much as digits as its factorization.

47079649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52814.

The product of its (nonzero) digits is 381024, while the sum is 46.

The square root of 47079649 is about 6861.4611417686. The cubic root of 47079649 is about 361.0863506880.

The spelling of 47079649 in words is "forty-seven million, seventy-nine thousand, six hundred forty-nine".