47457147 has 16 divisors (see below), whose sum is σ = 64217088. Its totient is φ = 31171200.

The previous prime is 47457143. The next prime is 47457191. The reversal of 47457147 is 74175474.

It is not a de Polignac number, because 47457147 - 2² = 47457143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47457143) 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, 118147 + ... + 118547.

It is an arithmetic number, because the mean of its divisors is an integer number (4013568).

Almost surely, 2^47457147 is an apocalyptic number.

47457147 is a deficient number, since it is larger than the sum of its proper divisors (16759941).

47457147 is a wasteful number, since it uses less digits than its factorization.

47457147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 890.

The product of its digits is 109760, while the sum is 39.

The square root of 47457147 is about 6888.9147911699. The cubic root of 47457147 is about 362.0488802873.

The spelling of 47457147 in words is "forty-seven million, four hundred fifty-seven thousand, one hundred forty-seven".