325630729 has 2 divisors, whose sum is σ = 325630730. Its totient is φ = 325630728.

The previous prime is 325630691. The next prime is 325630751. The reversal of 325630729 is 927036523.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 324000000 + 1630729 = 18000^2 + 1277^2 .

It is a cyclic number.

It is not a de Polignac number, because 325630729 - 2⁷ = 325630601 is a prime.

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

It is not a weakly prime, because it can be changed into another prime (325633729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162815364 + 162815365.

It is an arithmetic number, because the mean of its divisors is an integer number (162815365).

Almost surely, 2^325630729 is an apocalyptic number.

It is an amenable number.

325630729 is a deficient number, since it is larger than the sum of its proper divisors (1).

325630729 is an equidigital number, since it uses as much as digits as its factorization.

325630729 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 68040, while the sum is 37.

The square root of 325630729 is about 18045.2411732290. The cubic root of 325630729 is about 687.9789132092.

The spelling of 325630729 in words is "three hundred twenty-five million, six hundred thirty thousand, seven hundred twenty-nine".