925691321 has 2 divisors, whose sum is σ = 925691322. Its totient is φ = 925691320.

The previous prime is 925691251. The next prime is 925691359. The reversal of 925691321 is 123196529.

It is an a-pointer prime, because the next prime (925691359) can be obtained adding 925691321 to its sum of digits (38).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 770340025 + 155351296 = 27755^2 + 12464^2 .

It is an emirp because it is prime and its reverse (123196529) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 925691321 - 2¹⁸ = 925429177 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (925691621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 462845660 + 462845661.

It is an arithmetic number, because the mean of its divisors is an integer number (462845661).

Almost surely, 2^925691321 is an apocalyptic number.

It is an amenable number.

925691321 is a deficient number, since it is larger than the sum of its proper divisors (1).

925691321 is an equidigital number, since it uses as much as digits as its factorization.

925691321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 29160, while the sum is 38.

The square root of 925691321 is about 30425.1757759918. The cubic root of 925691321 is about 974.5902537751.

The spelling of 925691321 in words is "nine hundred twenty-five million, six hundred ninety-one thousand, three hundred twenty-one".