47760639 has 8 divisors (see below), whose sum is σ = 64265520. Its totient is φ = 31548096.

The previous prime is 47760637. The next prime is 47760649. The reversal of 47760639 is 93606774.

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

It is not a de Polignac number, because 47760639 - 2¹ = 47760637 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 47760639.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47760637) 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, 72702 + ... + 73355.

It is an arithmetic number, because the mean of its divisors is an integer number (8033190).

Almost surely, 2^47760639 is an apocalyptic number.

47760639 is a deficient number, since it is larger than the sum of its proper divisors (16504881).

47760639 is a wasteful number, since it uses less digits than its factorization.

47760639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146169.

The product of its (nonzero) digits is 190512, while the sum is 42.

The square root of 47760639 is about 6910.9072486903. The cubic root of 47760639 is about 362.8190174626.

It can be divided in two parts, 477 and 60639, that added together give a palindrome (61116).

The spelling of 47760639 in words is "forty-seven million, seven hundred sixty thousand, six hundred thirty-nine".