726632651 has 2 divisors, whose sum is σ = 726632652. Its totient is φ = 726632650.

The previous prime is 726632639. The next prime is 726632657. The reversal of 726632651 is 156236627.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 726632651 - 2²² = 722438347 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (726632657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 363316325 + 363316326.

It is an arithmetic number, because the mean of its divisors is an integer number (363316326).

Almost surely, 2^726632651 is an apocalyptic number.

726632651 is a deficient number, since it is larger than the sum of its proper divisors (1).

726632651 is an equidigital number, since it uses as much as digits as its factorization.

726632651 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 38.

The square root of 726632651 is about 26956.1245545423. The cubic root of 726632651 is about 899.0247258422.

The spelling of 726632651 in words is "seven hundred twenty-six million, six hundred thirty-two thousand, six hundred fifty-one".