987264269 has 2 divisors, whose sum is σ = 987264270. Its totient is φ = 987264268.

The previous prime is 987264253. The next prime is 987264331. The reversal of 987264269 is 962462789.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 853399369 + 133864900 = 29213^2 + 11570^2 .

It is an emirp because it is prime and its reverse (962462789) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 987264269 - 2⁴ = 987264253 is a prime.

It is a super-2 number, since 2×987264269² = 1949381473688208722, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 987264269.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (987264209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 493632134 + 493632135.

It is an arithmetic number, because the mean of its divisors is an integer number (493632135).

Almost surely, 2^987264269 is an apocalyptic number.

It is an amenable number.

987264269 is a deficient number, since it is larger than the sum of its proper divisors (1).

987264269 is an equidigital number, since it uses as much as digits as its factorization.

987264269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2612736, while the sum is 53.

The square root of 987264269 is about 31420.7617507915. The cubic root of 987264269 is about 995.7366056330.

The spelling of 987264269 in words is "nine hundred eighty-seven million, two hundred sixty-four thousand, two hundred sixty-nine".