726726057 has 16 divisors (see below), whose sum is σ = 974964480. Its totient is φ = 481496400.

The previous prime is 726725981. The next prime is 726726059. The reversal of 726726057 is 750627627.

It is not a de Polignac number, because 726726057 - 2⁸ = 726725801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (726726059) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 375382 + ... + 377312.

It is an arithmetic number, because the mean of its divisors is an integer number (60935280).

Almost surely, 2^726726057 is an apocalyptic number.

It is an amenable number.

726726057 is a deficient number, since it is larger than the sum of its proper divisors (248238423).

726726057 is a wasteful number, since it uses less digits than its factorization.

726726057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2644.

The product of its (nonzero) digits is 246960, while the sum is 42.

The square root of 726726057 is about 26957.8570550406. The cubic root of 726726057 is about 899.0632463176.

The spelling of 726726057 in words is "seven hundred twenty-six million, seven hundred twenty-six thousand, fifty-seven".