47764839 has 8 divisors (see below), whose sum is σ = 64068480. Its totient is φ = 31652216.

The previous prime is 47764823. The next prime is 47764909. The reversal of 47764839 is 93846774.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 47764839 - 2⁴ = 47764823 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47764039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47169 + ... + 48170.

It is an arithmetic number, because the mean of its divisors is an integer number (8008560).

Almost surely, 2^47764839 is an apocalyptic number.

47764839 is a deficient number, since it is larger than the sum of its proper divisors (16303641).

47764839 is a wasteful number, since it uses less digits than its factorization.

47764839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95509.

The product of its digits is 1016064, while the sum is 48.

The square root of 47764839 is about 6911.2111094945. The cubic root of 47764839 is about 362.8296524069.

The spelling of 47764839 in words is "forty-seven million, seven hundred sixty-four thousand, eight hundred thirty-nine".