726743587 has 2 divisors, whose sum is σ = 726743588. Its totient is φ = 726743586.

The previous prime is 726743539. The next prime is 726743599. The reversal of 726743587 is 785347627.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 726743587 - 2¹⁵ = 726710819 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 726743587.

It is not a weakly prime, because it can be changed into another prime (726743527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 363371793 + 363371794.

It is an arithmetic number, because the mean of its divisors is an integer number (363371794).

Almost surely, 2^726743587 is an apocalyptic number.

726743587 is a deficient number, since it is larger than the sum of its proper divisors (1).

726743587 is an equidigital number, since it uses as much as digits as its factorization.

726743587 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1975680, while the sum is 49.

The square root of 726743587 is about 26958.1821901997. The cubic root of 726743587 is about 899.0704752919.

The spelling of 726743587 in words is "seven hundred twenty-six million, seven hundred forty-three thousand, five hundred eighty-seven".