726743670 has 16 divisors (see below), whose sum is σ = 1744184880. Its totient is φ = 193798304.

The previous prime is 726743669. The next prime is 726743671. The reversal of 726743670 is 76347627.

It is an interprime number because it is at equal distance from previous prime (726743669) and next prime (726743671).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (726743671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12112365 + ... + 12112424.

It is an arithmetic number, because the mean of its divisors is an integer number (109011555).

Almost surely, 2^726743670 is an apocalyptic number.

726743670 is an abundant number, since it is smaller than the sum of its proper divisors (1017441210).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

726743670 is a wasteful number, since it uses less digits than its factorization.

726743670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24224799.

The product of its (nonzero) digits is 296352, while the sum is 42.

The square root of 726743670 is about 26958.1837296210. The cubic root of 726743670 is about 899.0705095190.

The spelling of 726743670 in words is "seven hundred twenty-six million, seven hundred forty-three thousand, six hundred seventy".