83896987 has 2 divisors, whose sum is σ = 83896988. Its totient is φ = 83896986.

The previous prime is 83896979. The next prime is 83897041. The reversal of 83896987 is 78969838.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 83896987 - 2³ = 83896979 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (83896957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41948493 + 41948494.

It is an arithmetic number, because the mean of its divisors is an integer number (41948494).

Almost surely, 2^83896987 is an apocalyptic number.

83896987 is a deficient number, since it is larger than the sum of its proper divisors (1).

83896987 is an equidigital number, since it uses as much as digits as its factorization.

83896987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5225472, while the sum is 58.

The square root of 83896987 is about 9159.5298460128. The cubic root of 83896987 is about 437.7728140079.

It can be divided in two parts, 838969 and 87, that added together give a square (839056 = 916²).

The spelling of 83896987 in words is "eighty-three million, eight hundred ninety-six thousand, nine hundred eighty-seven".