325788409 has 2 divisors, whose sum is σ = 325788410. Its totient is φ = 325788408.

The previous prime is 325788377. The next prime is 325788427. The reversal of 325788409 is 904887523.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 190578025 + 135210384 = 13805^2 + 11628^2 .

It is a cyclic number.

It is not a de Polignac number, because 325788409 - 2⁵ = 325788377 is a prime.

It is a super-2 number, since 2×325788409² = 212276174877502562, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (325788479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162894204 + 162894205.

It is an arithmetic number, because the mean of its divisors is an integer number (162894205).

Almost surely, 2^325788409 is an apocalyptic number.

It is an amenable number.

325788409 is a deficient number, since it is larger than the sum of its proper divisors (1).

325788409 is an equidigital number, since it uses as much as digits as its factorization.

325788409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 483840, while the sum is 46.

The square root of 325788409 is about 18049.6096633695. The cubic root of 325788409 is about 688.0899418481.

The spelling of 325788409 in words is "three hundred twenty-five million, seven hundred eighty-eight thousand, four hundred nine".