87007549 has 2 divisors, whose sum is σ = 87007550. Its totient is φ = 87007548.

The previous prime is 87007493. The next prime is 87007579. The reversal of 87007549 is 94570078.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79334649 + 7672900 = 8907^2 + 2770^2 .

It is a cyclic number.

It is not a de Polignac number, because 87007549 - 2¹³ = 86999357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87007579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43503774 + 43503775.

It is an arithmetic number, because the mean of its divisors is an integer number (43503775).

Almost surely, 2^87007549 is an apocalyptic number.

It is an amenable number.

87007549 is a deficient number, since it is larger than the sum of its proper divisors (1).

87007549 is an equidigital number, since it uses as much as digits as its factorization.

87007549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 70560, while the sum is 40.

The square root of 87007549 is about 9327.7837131872. The cubic root of 87007549 is about 443.1175778824.

The spelling of 87007549 in words is "eighty-seven million, seven thousand, five hundred forty-nine".