731696947 has 8 divisors (see below), whose sum is σ = 752340960. Its totient is φ = 711186240.

The previous prime is 731696921. The next prime is 731696971. The reversal of 731696947 is 749696137.

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-731696947 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 731696894 and 731696903.

It is not an unprimeable number, because it can be changed into a prime (731694947) 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, 22143 + ... + 44200.

It is an arithmetic number, because the mean of its divisors is an integer number (94042620).

Almost surely, 2^731696947 is an apocalyptic number.

731696947 is a deficient number, since it is larger than the sum of its proper divisors (20644013).

731696947 is a wasteful number, since it uses less digits than its factorization.

731696947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66653.

The product of its digits is 1714608, while the sum is 52.

The square root of 731696947 is about 27049.8973565520. The cubic root of 731696947 is about 901.1084888968.

The spelling of 731696947 in words is "seven hundred thirty-one million, six hundred ninety-six thousand, nine hundred forty-seven".