726682937 has 4 divisors (see below), whose sum is σ = 726843636. Its totient is φ = 726522240.

The previous prime is 726682919. The next prime is 726682961. The reversal of 726682937 is 739286627.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 739286627 = 3389 ⋅218143.

It can be written as a sum of positive squares in 2 ways, for example, as 482417296 + 244265641 = 21964^2 + 15629^2 .

It is a cyclic number.

It is not a de Polignac number, because 726682937 - 2⁸ = 726682681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (726682967) 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, 73364 + ... + 82677.

It is an arithmetic number, because the mean of its divisors is an integer number (181710909).

Almost surely, 2^726682937 is an apocalyptic number.

It is an amenable number.

726682937 is a deficient number, since it is larger than the sum of its proper divisors (160699).

726682937 is a wasteful number, since it uses less digits than its factorization.

726682937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160698.

The product of its digits is 1524096, while the sum is 50.

The square root of 726682937 is about 26957.0572763423. The cubic root of 726682937 is about 899.0454641132.

The spelling of 726682937 in words is "seven hundred twenty-six million, six hundred eighty-two thousand, nine hundred thirty-seven".