47431745 has 8 divisors (see below), whose sum is σ = 57189120. Its totient is φ = 37764720.

The previous prime is 47431723. The next prime is 47431871. The reversal of 47431745 is 54713474.

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

It is not a de Polignac number, because 47431745 - 2¹² = 47427649 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21425 + ... + 23534.

It is an arithmetic number, because the mean of its divisors is an integer number (7148640).

Almost surely, 2^47431745 is an apocalyptic number.

It is an amenable number.

47431745 is a deficient number, since it is larger than the sum of its proper divisors (9757375).

47431745 is a wasteful number, since it uses less digits than its factorization.

47431745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45175.

The product of its digits is 47040, while the sum is 35.

The square root of 47431745 is about 6887.0708577740. The cubic root of 47431745 is about 361.9842717748.

The spelling of 47431745 in words is "forty-seven million, four hundred thirty-one thousand, seven hundred forty-five".