725614987 has 2 divisors, whose sum is σ = 725614988. Its totient is φ = 725614986.

The previous prime is 725614979. The next prime is 725615027. The reversal of 725614987 is 789416527.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 725614987 - 2³ = 725614979 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 725614987.

It is not a weakly prime, because it can be changed into another prime (725614957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362807493 + 362807494.

It is an arithmetic number, because the mean of its divisors is an integer number (362807494).

Almost surely, 2^725614987 is an apocalyptic number.

725614987 is a deficient number, since it is larger than the sum of its proper divisors (1).

725614987 is an equidigital number, since it uses as much as digits as its factorization.

725614987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 846720, while the sum is 49.

The square root of 725614987 is about 26937.2416368120. The cubic root of 725614987 is about 898.6048288720.

The spelling of 725614987 in words is "seven hundred twenty-five million, six hundred fourteen thousand, nine hundred eighty-seven".