47165979 has 24 divisors (see below), whose sum is σ = 73416000. Its totient is φ = 26856144.

The previous prime is 47165971. The next prime is 47165981. The reversal of 47165979 is 97956174.

It is a happy number.

It is not a de Polignac number, because 47165979 - 2³ = 47165971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47165971) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 73032 + ... + 73674.

It is an arithmetic number, because the mean of its divisors is an integer number (3059000).

Almost surely, 2^47165979 is an apocalyptic number.

47165979 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

47165979 is a deficient number, since it is larger than the sum of its proper divisors (26250021).

47165979 is a wasteful number, since it uses less digits than its factorization.

47165979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1159 (or 1152 counting only the distinct ones).

The product of its digits is 476280, while the sum is 48.

The square root of 47165979 is about 6867.7491946052. The cubic root of 47165979 is about 361.3069240565.

The spelling of 47165979 in words is "forty-seven million, one hundred sixty-five thousand, nine hundred seventy-nine".