47724291 has 12 divisors (see below), whose sum is σ = 69647032. Its totient is φ = 31487616.

The previous prime is 47724289. The next prime is 47724293. The reversal of 47724291 is 19242774.

It is an interprime number because it is at equal distance from previous prime (47724289) and next prime (47724293).

It is not a de Polignac number, because 47724291 - 2¹ = 47724289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47724293) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26461 + ... + 28206.

Almost surely, 2^47724291 is an apocalyptic number.

47724291 is a deficient number, since it is larger than the sum of its proper divisors (21922741).

47724291 is a wasteful number, since it uses less digits than its factorization.

47724291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54770 (or 54767 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The square root of 47724291 is about 6908.2769921305. The cubic root of 47724291 is about 362.7269535593.

The spelling of 47724291 in words is "forty-seven million, seven hundred twenty-four thousand, two hundred ninety-one".