83536987 has 2 divisors, whose sum is σ = 83536988. Its totient is φ = 83536986.

The previous prime is 83536951. The next prime is 83536993. The reversal of 83536987 is 78963538.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83536987 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 83536987.

It is not a weakly prime, because it can be changed into another prime (83536087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41768493 + 41768494.

It is an arithmetic number, because the mean of its divisors is an integer number (41768494).

Almost surely, 2^83536987 is an apocalyptic number.

83536987 is a deficient number, since it is larger than the sum of its proper divisors (1).

83536987 is an equidigital number, since it uses as much as digits as its factorization.

83536987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1088640, while the sum is 49.

The square root of 83536987 is about 9139.8570557750. The cubic root of 83536987 is about 437.1457586379.

The spelling of 83536987 in words is "eighty-three million, five hundred thirty-six thousand, nine hundred eighty-seven".