726706415 has 4 divisors (see below), whose sum is σ = 872047704. Its totient is φ = 581365128.

The previous prime is 726706411. The next prime is 726706423. The reversal of 726706415 is 514607627.

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

It is a cyclic number.

It is not a de Polignac number, because 726706415 - 2² = 726706411 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (726706411) 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, 72670637 + ... + 72670646.

It is an arithmetic number, because the mean of its divisors is an integer number (218011926).

Almost surely, 2^726706415 is an apocalyptic number.

726706415 is a deficient number, since it is larger than the sum of its proper divisors (145341289).

726706415 is a wasteful number, since it uses less digits than its factorization.

726706415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145341288.

The product of its (nonzero) digits is 70560, while the sum is 38.

The square root of 726706415 is about 26957.4927432059. The cubic root of 726706415 is about 899.0551462643.

The spelling of 726706415 in words is "seven hundred twenty-six million, seven hundred six thousand, four hundred fifteen".