726666627 has 4 divisors (see below), whose sum is σ = 968888840. Its totient is φ = 484444416.

The previous prime is 726666617. The next prime is 726666637.

726666627 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (726666617) and next prime (726666637).

It is not a de Polignac number, because 726666627 - 2²⁶ = 659557763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (726666617) 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, 121111102 + ... + 121111107.

It is an arithmetic number, because the mean of its divisors is an integer number (242222210).

Almost surely, 2^726666627 is an apocalyptic number.

726666627 is a deficient number, since it is larger than the sum of its proper divisors (242222213).

726666627 is a wasteful number, since it uses less digits than its factorization.

726666627 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242222212.

The product of its digits is 1524096, while the sum is 48.

The square root of 726666627 is about 26956.7547564613. The cubic root of 726666627 is about 899.0387378687.

The spelling of 726666627 in words is "seven hundred twenty-six million, six hundred sixty-six thousand, six hundred twenty-seven".