83887487 has 2 divisors, whose sum is σ = 83887488. Its totient is φ = 83887486.

The previous prime is 83887483. The next prime is 83887513. The reversal of 83887487 is 78478838.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 83887487 - 2² = 83887483 is a prime.

It is a super-2 number, since 2×83887487² = 14074220950350338, which contains 22 as substring.

It is a zygodrome in base 4.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83887483) 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, 41943743 + 41943744.

It is an arithmetic number, because the mean of its divisors is an integer number (41943744).

Almost surely, 2^83887487 is an apocalyptic number.

83887487 is a deficient number, since it is larger than the sum of its proper divisors (1).

83887487 is an equidigital number, since it uses as much as digits as its factorization.

83887487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2408448, while the sum is 53.

The square root of 83887487 is about 9159.0112457623. The cubic root of 83887487 is about 437.7562897804.

The spelling of 83887487 in words is "eighty-three million, eight hundred eighty-seven thousand, four hundred eighty-seven".