325378891 has 2 divisors, whose sum is σ = 325378892. Its totient is φ = 325378890.

The previous prime is 325378847. The next prime is 325378901. The reversal of 325378891 is 198873523.

It is a strong prime.

It is an emirp because it is prime and its reverse (198873523) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 325378891 - 2²⁵ = 291824459 is a prime.

It is not a weakly prime, because it can be changed into another prime (325373891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162689445 + 162689446.

It is an arithmetic number, because the mean of its divisors is an integer number (162689446).

Almost surely, 2^325378891 is an apocalyptic number.

325378891 is a deficient number, since it is larger than the sum of its proper divisors (1).

325378891 is an equidigital number, since it uses as much as digits as its factorization.

325378891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 362880, while the sum is 46.

The square root of 325378891 is about 18038.2618619422. The cubic root of 325378891 is about 687.8015098883.

The spelling of 325378891 in words is "three hundred twenty-five million, three hundred seventy-eight thousand, eight hundred ninety-one".