47742717 has 16 divisors (see below), whose sum is σ = 69579072. Its totient is φ = 28878720.

The previous prime is 47742713. The next prime is 47742757. The reversal of 47742717 is 71724774.

It is not a de Polignac number, because 47742717 - 2² = 47742713 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47742713) 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, 21273 + ... + 23409.

It is an arithmetic number, because the mean of its divisors is an integer number (4348692).

Almost surely, 2^47742717 is an apocalyptic number.

It is an amenable number.

47742717 is a deficient number, since it is larger than the sum of its proper divisors (21836355).

47742717 is a wasteful number, since it uses less digits than its factorization.

47742717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2828.

The product of its digits is 76832, while the sum is 39.

The square root of 47742717 is about 6909.6104810619. The cubic root of 47742717 is about 362.7736296281.

The spelling of 47742717 in words is "forty-seven million, seven hundred forty-two thousand, seven hundred seventeen".