87955849 has 2 divisors, whose sum is σ = 87955850. Its totient is φ = 87955848.

The previous prime is 87955831. The next prime is 87955867. The reversal of 87955849 is 94855978.

It is a balanced prime because it is at equal distance from previous prime (87955831) and next prime (87955867).

It can be written as a sum of positive squares in only one way, i.e., 54686025 + 33269824 = 7395^2 + 5768^2 .

It is a cyclic number.

It is not a de Polignac number, because 87955849 - 2¹⁷ = 87824777 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 87955849.

It is not a weakly prime, because it can be changed into another prime (87959849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43977924 + 43977925.

It is an arithmetic number, because the mean of its divisors is an integer number (43977925).

Almost surely, 2^87955849 is an apocalyptic number.

It is an amenable number.

87955849 is a deficient number, since it is larger than the sum of its proper divisors (1).

87955849 is an equidigital number, since it uses as much as digits as its factorization.

87955849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3628800, while the sum is 55.

The square root of 87955849 is about 9378.4779681993. The cubic root of 87955849 is about 444.7216185905.

It can be divided in two parts, 87955 and 849, that added together give a square (88804 = 298²).

The spelling of 87955849 in words is "eighty-seven million, nine hundred fifty-five thousand, eight hundred forty-nine".