83009887 has 2 divisors, whose sum is σ = 83009888. Its totient is φ = 83009886.

The previous prime is 83009831. The next prime is 83009893. The reversal of 83009887 is 78890038.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83009887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83009897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41504943 + 41504944.

It is an arithmetic number, because the mean of its divisors is an integer number (41504944).

Almost surely, 2^83009887 is an apocalyptic number.

83009887 is a deficient number, since it is larger than the sum of its proper divisors (1).

83009887 is an equidigital number, since it uses as much as digits as its factorization.

83009887 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96768, while the sum is 43.

The square root of 83009887 is about 9110.9761826052. The cubic root of 83009887 is about 436.2243868565.

The spelling of 83009887 in words is "eighty-three million, nine thousand, eight hundred eighty-seven".