987264253 has 2 divisors, whose sum is σ = 987264254. Its totient is φ = 987264252.

The previous prime is 987264247. The next prime is 987264269. The reversal of 987264253 is 352462789.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 884586564 + 102677689 = 29742^2 + 10133^2 .

It is a cyclic number.

It is not a de Polignac number, because 987264253 - 2²¹ = 985167101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (987264203) 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, 493632126 + 493632127.

It is an arithmetic number, because the mean of its divisors is an integer number (493632127).

Almost surely, 2^987264253 is an apocalyptic number.

It is an amenable number.

987264253 is a deficient number, since it is larger than the sum of its proper divisors (1).

987264253 is an equidigital number, since it uses as much as digits as its factorization.

987264253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 725760, while the sum is 46.

The square root of 987264253 is about 31420.7614961827. The cubic root of 987264253 is about 995.7366002539.

The spelling of 987264253 in words is "nine hundred eighty-seven million, two hundred sixty-four thousand, two hundred fifty-three".