47676709 has 4 divisors (see below), whose sum is σ = 48114220. Its totient is φ = 47239200.

The previous prime is 47676703. The next prime is 47676749. The reversal of 47676709 is 90767674.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 22896225 + 24780484 = 4785^2 + 4978^2 .

It is a cyclic number.

It is not a de Polignac number, because 47676709 - 2³ = 47676701 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47676701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 218592 + ... + 218809.

It is an arithmetic number, because the mean of its divisors is an integer number (12028555).

Almost surely, 2^47676709 is an apocalyptic number.

It is an amenable number.

47676709 is a deficient number, since it is larger than the sum of its proper divisors (437511).

47676709 is a wasteful number, since it uses less digits than its factorization.

47676709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437510.

The product of its (nonzero) digits is 444528, while the sum is 46.

The square root of 47676709 is about 6904.8322934015. The cubic root of 47676709 is about 362.6063649823.

It can be divided in two parts, 4767 and 6709, that added together give a triangular number (11476 = T₁₅₁).

The spelling of 47676709 in words is "forty-seven million, six hundred seventy-six thousand, seven hundred nine".