82606987 has 2 divisors, whose sum is σ = 82606988. Its totient is φ = 82606986.

The previous prime is 82606973. The next prime is 82607039. The reversal of 82606987 is 78960628.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82606987 - 2¹¹ = 82604939 is a prime.

It is not a weakly prime, because it can be changed into another prime (82606907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41303493 + 41303494.

It is an arithmetic number, because the mean of its divisors is an integer number (41303494).

Almost surely, 2^82606987 is an apocalyptic number.

82606987 is a deficient number, since it is larger than the sum of its proper divisors (1).

82606987 is an equidigital number, since it uses as much as digits as its factorization.

82606987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 290304, while the sum is 46.

The square root of 82606987 is about 9088.8385946720. The cubic root of 82606987 is about 435.5174834133.

The spelling of 82606987 in words is "eighty-two million, six hundred six thousand, nine hundred eighty-seven".