47619813 has 16 divisors (see below), whose sum is σ = 65994752. Its totient is φ = 30510000.

The previous prime is 47619809. The next prime is 47619829. The reversal of 47619813 is 31891674.

It is not a de Polignac number, because 47619813 - 2² = 47619809 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47619893) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12348 + ... + 15738.

It is an arithmetic number, because the mean of its divisors is an integer number (4124672).

Almost surely, 2^47619813 is an apocalyptic number.

It is an amenable number.

47619813 is a deficient number, since it is larger than the sum of its proper divisors (18374939).

47619813 is a wasteful number, since it uses less digits than its factorization.

47619813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3576.

The product of its digits is 36288, while the sum is 39.

The square root of 47619813 is about 6900.7110503194. The cubic root of 47619813 is about 362.4620662644.

The spelling of 47619813 in words is "forty-seven million, six hundred nineteen thousand, eight hundred thirteen".