726825641 has 4 divisors (see below), whose sum is σ = 733618512. Its totient is φ = 720032772.

The previous prime is 726825629. The next prime is 726825647. The reversal of 726825641 is 146528627.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 726825641 - 2¹⁴ = 726809257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (726825647) 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, 3396275 + ... + 3396488.

It is an arithmetic number, because the mean of its divisors is an integer number (183404628).

Almost surely, 2^726825641 is an apocalyptic number.

It is an amenable number.

726825641 is a deficient number, since it is larger than the sum of its proper divisors (6792871).

726825641 is a wasteful number, since it uses less digits than its factorization.

726825641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6792870.

The product of its digits is 161280, while the sum is 41.

The square root of 726825641 is about 26959.7040228560. The cubic root of 726825641 is about 899.1043109546.

The spelling of 726825641 in words is "seven hundred twenty-six million, eight hundred twenty-five thousand, six hundred forty-one".