721707314 has 8 divisors (see below), whose sum is σ = 1082675100. Its totient is φ = 360815616.

The previous prime is 721707299. The next prime is 721707323. The reversal of 721707314 is 413707127.

It can be written as a sum of positive squares in 2 ways, for example, as 676884289 + 44823025 = 26017^2 + 6695^2 .

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

It is a super-2 number, since 2×721707314² = 1041722894162189192, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26102 + ... + 46094.

Almost surely, 2^721707314 is an apocalyptic number.

721707314 is a deficient number, since it is larger than the sum of its proper divisors (360967786).

721707314 is a wasteful number, since it uses less digits than its factorization.

721707314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38044.

The product of its (nonzero) digits is 8232, while the sum is 32.

The square root of 721707314 is about 26864.6108105068. The cubic root of 721707314 is about 896.9888312892.

The spelling of 721707314 in words is "seven hundred twenty-one million, seven hundred seven thousand, three hundred fourteen".