88087409 has 2 divisors, whose sum is σ = 88087410. Its totient is φ = 88087408.

The previous prime is 88087397. The next prime is 88087423. The reversal of 88087409 is 90478088.

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., 68973025 + 19114384 = 8305^2 + 4372^2 .

It is a cyclic number.

It is not a de Polignac number, because 88087409 - 2¹² = 88083313 is a prime.

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 88087409.

It is not a weakly prime, because it can be changed into another prime (88087469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44043704 + 44043705.

It is an arithmetic number, because the mean of its divisors is an integer number (44043705).

Almost surely, 2^88087409 is an apocalyptic number.

It is an amenable number.

88087409 is a deficient number, since it is larger than the sum of its proper divisors (1).

88087409 is an equidigital number, since it uses as much as digits as its factorization.

88087409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129024, while the sum is 44.

The square root of 88087409 is about 9385.4892786684. The cubic root of 88087409 is about 444.9432389834.

The spelling of 88087409 in words is "eighty-eight million, eighty-seven thousand, four hundred nine".