47164747 has 4 divisors (see below), whose sum is σ = 53902576. Its totient is φ = 40426920.

The previous prime is 47164739. The next prime is 47164757. The reversal of 47164747 is 74746174.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74746174 = 2 ⋅37373087.

It is a cyclic number.

It is not a de Polignac number, because 47164747 - 2³ = 47164739 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47164727) 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, 3368904 + ... + 3368917.

It is an arithmetic number, because the mean of its divisors is an integer number (13475644).

Almost surely, 2^47164747 is an apocalyptic number.

47164747 is a deficient number, since it is larger than the sum of its proper divisors (6737829).

47164747 is an equidigital number, since it uses as much as digits as its factorization.

47164747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6737828.

The product of its digits is 131712, while the sum is 40.

The square root of 47164747 is about 6867.6594994219. The cubic root of 47164747 is about 361.3037781873.

The spelling of 47164747 in words is "forty-seven million, one hundred sixty-four thousand, seven hundred forty-seven".