726690771 has 12 divisors (see below), whose sum is σ = 1088541272. Its totient is φ = 484460352.

The previous prime is 726690763. The next prime is 726690793. The reversal of 726690771 is 177096627.

It is not a de Polignac number, because 726690771 - 2³ = 726690763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (726695771) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1495006 + ... + 1495491.

Almost surely, 2^726690771 is an apocalyptic number.

726690771 is a deficient number, since it is larger than the sum of its proper divisors (361850501).

726690771 is an equidigital number, since it uses as much as digits as its factorization.

726690771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2990512 (or 2990500 counting only the distinct ones).

The product of its (nonzero) digits is 222264, while the sum is 45.

The square root of 726690771 is about 26957.2025811285. The cubic root of 726690771 is about 899.0486948192.

The spelling of 726690771 in words is "seven hundred twenty-six million, six hundred ninety thousand, seven hundred seventy-one".