947714381 has 4 divisors (see below), whose sum is σ = 947809212. Its totient is φ = 947619552.

The previous prime is 947714377. The next prime is 947714387. The reversal of 947714381 is 183417749.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 598585156 + 349129225 = 24466^2 + 18685^2 .

It is a cyclic number.

It is not a de Polignac number, because 947714381 - 2² = 947714377 is a prime.

It is a super-2 number, since 2×947714381² = 1796325095908426322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (947714387) 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, 30386 + ... + 53091.

It is an arithmetic number, because the mean of its divisors is an integer number (236952303).

Almost surely, 2^947714381 is an apocalyptic number.

It is an amenable number.

947714381 is a deficient number, since it is larger than the sum of its proper divisors (94831).

947714381 is a wasteful number, since it uses less digits than its factorization.

947714381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94830.

The product of its digits is 169344, while the sum is 44.

The square root of 947714381 is about 30784.9700503346. The cubic root of 947714381 is about 982.2585631759.

The spelling of 947714381 in words is "nine hundred forty-seven million, seven hundred fourteen thousand, three hundred eighty-one".