8285907493 has 2 divisors, whose sum is σ = 8285907494. Its totient is φ = 8285907492.

The previous prime is 8285907451. The next prime is 8285907503. The reversal of 8285907493 is 3947095828.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7824817764 + 461089729 = 88458^2 + 21473^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8285907493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8285907793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4142953746 + 4142953747.

It is an arithmetic number, because the mean of its divisors is an integer number (4142953747).

Almost surely, 2^8285907493 is an apocalyptic number.

It is an amenable number.

8285907493 is a deficient number, since it is larger than the sum of its proper divisors (1).

8285907493 is an equidigital number, since it uses as much as digits as its factorization.

8285907493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4354560, while the sum is 55.

The square root of 8285907493 is about 91026.9602535425. The cubic root of 8285907493 is about 2023.5472987447.

The spelling of 8285907493 in words is "eight billion, two hundred eighty-five million, nine hundred seven thousand, four hundred ninety-three".