726406725 has 48 divisors (see below), whose sum is σ = 1352484864. Its totient is φ = 340824000.

The previous prime is 726406687. The next prime is 726406741. The reversal of 726406725 is 527604627.

It is a happy number.

It is not a de Polignac number, because 726406725 - 2⁶ = 726406661 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11374 + ... + 39776.

It is an arithmetic number, because the mean of its divisors is an integer number (28176768).

Almost surely, 2^726406725 is an apocalyptic number.

726406725 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

726406725 is a deficient number, since it is larger than the sum of its proper divisors (626078139).

726406725 is a wasteful number, since it uses less digits than its factorization.

726406725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28458 (or 28453 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 39.

The square root of 726406725 is about 26951.9336041034. The cubic root of 726406725 is about 898.9315406936.

The spelling of 726406725 in words is "seven hundred twenty-six million, four hundred six thousand, seven hundred twenty-five".