87601249 has 2 divisors, whose sum is σ = 87601250. Its totient is φ = 87601248.

The previous prime is 87601231. The next prime is 87601301. The reversal of 87601249 is 94210678.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82901025 + 4700224 = 9105^2 + 2168^2 .

It is a cyclic number.

It is not a de Polignac number, because 87601249 - 2⁷ = 87601121 is a prime.

It is not a weakly prime, because it can be changed into another prime (87601219) 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, 43800624 + 43800625.

It is an arithmetic number, because the mean of its divisors is an integer number (43800625).

Almost surely, 2^87601249 is an apocalyptic number.

It is an amenable number.

87601249 is a deficient number, since it is larger than the sum of its proper divisors (1).

87601249 is an equidigital number, since it uses as much as digits as its factorization.

87601249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 87601249 is about 9359.5538889415. The cubic root of 87601249 is about 444.1231718035.

The spelling of 87601249 in words is "eighty-seven million, six hundred one thousand, two hundred forty-nine".