83486866 has 4 divisors (see below), whose sum is σ = 125230302. Its totient is φ = 41743432.

The previous prime is 83486863. The next prime is 83486869. The reversal of 83486866 is 66868438.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (83486863) and next prime (83486869).

It can be written as a sum of positive squares in only one way, i.e., 83338641 + 148225 = 9129^2 + 385^2 .

It is not an unprimeable number, because it can be changed into a prime (83486861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20871715 + ... + 20871718.

Almost surely, 2^83486866 is an apocalyptic number.

83486866 is a deficient number, since it is larger than the sum of its proper divisors (41743436).

83486866 is a wasteful number, since it uses less digits than its factorization.

83486866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41743435.

The product of its digits is 1327104, while the sum is 49.

The square root of 83486866 is about 9137.1147524807. The cubic root of 83486866 is about 437.0583140749.

The spelling of 83486866 in words is "eighty-three million, four hundred eighty-six thousand, eight hundred sixty-six".