87744049 has 2 divisors, whose sum is σ = 87744050. Its totient is φ = 87744048.

The previous prime is 87744017. The next prime is 87744067. The reversal of 87744049 is 94044778.

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., 71487025 + 16257024 = 8455^2 + 4032^2 .

It is a cyclic number.

It is not a de Polignac number, because 87744049 - 2⁵ = 87744017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 87743996 and 87744014.

It is not a weakly prime, because it can be changed into another prime (87744079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43872024 + 43872025.

It is an arithmetic number, because the mean of its divisors is an integer number (43872025).

Almost surely, 2^87744049 is an apocalyptic number.

It is an amenable number.

87744049 is a deficient number, since it is larger than the sum of its proper divisors (1).

87744049 is an equidigital number, since it uses as much as digits as its factorization.

87744049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 225792, while the sum is 43.

The square root of 87744049 is about 9367.1793513309. The cubic root of 87744049 is about 444.3643645559.

The spelling of 87744049 in words is "eighty-seven million, seven hundred forty-four thousand, forty-nine".