47972177 has 8 divisors (see below), whose sum is σ = 54138240. Its totient is φ = 42106960.

The previous prime is 47972167. The next prime is 47972191. The reversal of 47972177 is 77127974.

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

It is a cyclic number.

It is not a de Polignac number, because 47972177 - 2¹⁰ = 47971153 is a prime.

It is a super-2 number, since 2×47972177² = 4602659532238658, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47972167) 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, 74873 + ... + 75510.

It is an arithmetic number, because the mean of its divisors is an integer number (6767280).

Almost surely, 2^47972177 is an apocalyptic number.

It is an amenable number.

47972177 is a deficient number, since it is larger than the sum of its proper divisors (6166063).

47972177 is a wasteful number, since it uses less digits than its factorization.

47972177 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150423.

The product of its digits is 172872, while the sum is 44.

The square root of 47972177 is about 6926.1949871484. The cubic root of 47972177 is about 363.3538859026.

The spelling of 47972177 in words is "forty-seven million, nine hundred seventy-two thousand, one hundred seventy-seven".