47380931 has 8 divisors (see below), whose sum is σ = 51365664. Its totient is φ = 43444800.

The previous prime is 47380903. The next prime is 47380937. The reversal of 47380931 is 13908374.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47380931 is a prime.

It is a super-2 number, since 2×47380931² = 4489905244853522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47380891 and 47380900.

It is not an unprimeable number, because it can be changed into a prime (47380937) 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, 10106 + ... + 14031.

It is an arithmetic number, because the mean of its divisors is an integer number (6420708).

Almost surely, 2^47380931 is an apocalyptic number.

47380931 is a deficient number, since it is larger than the sum of its proper divisors (3984733).

47380931 is a wasteful number, since it uses less digits than its factorization.

47380931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24301.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 47380931 is about 6883.3807827259. The cubic root of 47380931 is about 361.8549600575.

The spelling of 47380931 in words is "forty-seven million, three hundred eighty thousand, nine hundred thirty-one".