47164423 has 16 divisors (see below), whose sum is σ = 50181120. Its totient is φ = 44265600.

The previous prime is 47164399. The next prime is 47164433. The reversal of 47164423 is 32446174.

It is a cyclic number.

It is not a de Polignac number, because 47164423 - 2⁹ = 47163911 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47164433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 195583 + ... + 195823.

It is an arithmetic number, because the mean of its divisors is an integer number (3136320).

Almost surely, 2^47164423 is an apocalyptic number.

47164423 is a deficient number, since it is larger than the sum of its proper divisors (3016697).

47164423 is a wasteful number, since it uses less digits than its factorization.

47164423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438.

The product of its digits is 16128, while the sum is 31.

The square root of 47164423 is about 6867.6359105590. The cubic root of 47164423 is about 361.3029508554.

The spelling of 47164423 in words is "forty-seven million, one hundred sixty-four thousand, four hundred twenty-three".