47276639 has 8 divisors (see below), whose sum is σ = 48941568. Its totient is φ = 45632160.

The previous prime is 47276633. The next prime is 47276659. The reversal of 47276639 is 93667274.

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 47276639 - 2⁴ = 47276623 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 47276639.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47276633) 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, 332 + ... + 9729.

It is an arithmetic number, because the mean of its divisors is an integer number (6117696).

Almost surely, 2^47276639 is an apocalyptic number.

47276639 is a deficient number, since it is larger than the sum of its proper divisors (1664929).

47276639 is a wasteful number, since it uses less digits than its factorization.

47276639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10225.

The product of its digits is 381024, while the sum is 44.

The square root of 47276639 is about 6875.8009715232. The cubic root of 47276639 is about 361.5892673700.

The spelling of 47276639 in words is "forty-seven million, two hundred seventy-six thousand, six hundred thirty-nine".