725033689 has 2 divisors, whose sum is σ = 725033690. Its totient is φ = 725033688.

The previous prime is 725033681. The next prime is 725033717. The reversal of 725033689 is 986330527.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 491952400 + 233081289 = 22180^2 + 15267^2 .

It is a cyclic number.

It is not a de Polignac number, because 725033689 - 2³ = 725033681 is a prime.

It is not a weakly prime, because it can be changed into another prime (725033681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362516844 + 362516845.

It is an arithmetic number, because the mean of its divisors is an integer number (362516845).

Almost surely, 2^725033689 is an apocalyptic number.

It is an amenable number.

725033689 is a deficient number, since it is larger than the sum of its proper divisors (1).

725033689 is an equidigital number, since it uses as much as digits as its factorization.

725033689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 272160, while the sum is 43.

The square root of 725033689 is about 26926.4496174301. The cubic root of 725033689 is about 898.3648040885.

The spelling of 725033689 in words is "seven hundred twenty-five million, thirty-three thousand, six hundred eighty-nine".