47214639 has 24 divisors (see below), whose sum is σ = 74271600. Its totient is φ = 28788480.

The previous prime is 47214637. The next prime is 47214647. The reversal of 47214639 is 93641274.

47214639 is a `hidden beast` number, since 4 + 7 + 2 + 14 + 639 = 666.

It is not a de Polignac number, because 47214639 - 2¹ = 47214637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47214631) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 199 + ... + 9719.

It is an arithmetic number, because the mean of its divisors is an integer number (3094650).

Almost surely, 2^47214639 is an apocalyptic number.

47214639 is a deficient number, since it is larger than the sum of its proper divisors (27056961).

47214639 is a wasteful number, since it uses less digits than its factorization.

47214639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9575 (or 9572 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 47214639 is about 6871.2909267473. The cubic root of 47214639 is about 361.4311318911.

The spelling of 47214639 in words is "forty-seven million, two hundred fourteen thousand, six hundred thirty-nine".