8287400923 has 2 divisors, whose sum is σ = 8287400924. Its totient is φ = 8287400922.

The previous prime is 8287400899. The next prime is 8287400939. The reversal of 8287400923 is 3290047828.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8287400923 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8287400923.

It is not a weakly prime, because it can be changed into another prime (8287400983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4143700461 + 4143700462.

It is an arithmetic number, because the mean of its divisors is an integer number (4143700462).

Almost surely, 2^8287400923 is an apocalyptic number.

8287400923 is a deficient number, since it is larger than the sum of its proper divisors (1).

8287400923 is an equidigital number, since it uses as much as digits as its factorization.

8287400923 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 193536, while the sum is 43.

The square root of 8287400923 is about 91035.1631129422. The cubic root of 8287400923 is about 2023.6688643749.

The spelling of 8287400923 in words is "eight billion, two hundred eighty-seven million, four hundred thousand, nine hundred twenty-three".