87259349 has 2 divisors, whose sum is σ = 87259350. Its totient is φ = 87259348.

The previous prime is 87259339. The next prime is 87259363. The reversal of 87259349 is 94395278.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73702225 + 13557124 = 8585^2 + 3682^2 .

It is a cyclic number.

It is not a de Polignac number, because 87259349 - 2⁸ = 87259093 is a prime.

It is a super-2 number, since 2×87259349² = 15228387975807602, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87259339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43629674 + 43629675.

It is an arithmetic number, because the mean of its divisors is an integer number (43629675).

Almost surely, 2^87259349 is an apocalyptic number.

It is an amenable number.

87259349 is a deficient number, since it is larger than the sum of its proper divisors (1).

87259349 is an equidigital number, since it uses as much as digits as its factorization.

87259349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 544320, while the sum is 47.

The square root of 87259349 is about 9341.2712732261. The cubic root of 87259349 is about 443.5446272033.

The spelling of 87259349 in words is "eighty-seven million, two hundred fifty-nine thousand, three hundred forty-nine".