47979071 has 4 divisors (see below), whose sum is σ = 54833232. Its totient is φ = 41124912.

The previous prime is 47979067. The next prime is 47979089. The reversal of 47979071 is 17097974.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17097974 = 2 ⋅8548987.

It is a cyclic number.

It is not a de Polignac number, because 47979071 - 2² = 47979067 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47979091) 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, 3427070 + ... + 3427083.

It is an arithmetic number, because the mean of its divisors is an integer number (13708308).

Almost surely, 2^47979071 is an apocalyptic number.

47979071 is a deficient number, since it is larger than the sum of its proper divisors (6854161).

47979071 is an equidigital number, since it uses as much as digits as its factorization.

47979071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6854160.

The product of its (nonzero) digits is 111132, while the sum is 44.

The square root of 47979071 is about 6926.6926451229. The cubic root of 47979071 is about 363.3712907253.

The spelling of 47979071 in words is "forty-seven million, nine hundred seventy-nine thousand, seventy-one".