87696449 has 2 divisors, whose sum is σ = 87696450. Its totient is φ = 87696448.

The previous prime is 87696359. The next prime is 87696461. The reversal of 87696449 is 94469678.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77088400 + 10608049 = 8780^2 + 3257^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87696449 is a prime.

It is a super-3 number, since 3×87696449³ (a number of 25 digits) contains 333 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 87696449.

It is not a weakly prime, because it can be changed into another prime (87696649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43848224 + 43848225.

It is an arithmetic number, because the mean of its divisors is an integer number (43848225).

Almost surely, 2^87696449 is an apocalyptic number.

It is an amenable number.

87696449 is a deficient number, since it is larger than the sum of its proper divisors (1).

87696449 is an equidigital number, since it uses as much as digits as its factorization.

87696449 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 87696449 is about 9364.6382204546. The cubic root of 87696449 is about 444.2839960675.

The spelling of 87696449 in words is "eighty-seven million, six hundred ninety-six thousand, four hundred forty-nine".