47172646 has 8 divisors (see below), whose sum is σ = 70792344. Its totient is φ = 23575200.

The previous prime is 47172599. The next prime is 47172659. The reversal of 47172646 is 64627174.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1566 + ... + 9838.

It is an arithmetic number, because the mean of its divisors is an integer number (8849043).

Almost surely, 2^47172646 is an apocalyptic number.

47172646 is a deficient number, since it is larger than the sum of its proper divisors (23619698).

47172646 is a wasteful number, since it uses less digits than its factorization.

47172646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11126.

The product of its digits is 56448, while the sum is 37.

The square root of 47172646 is about 6868.2345620982. The cubic root of 47172646 is about 361.3239470593.

The spelling of 47172646 in words is "forty-seven million, one hundred seventy-two thousand, six hundred forty-six".