83398066 has 4 divisors (see below), whose sum is σ = 125097102. Its totient is φ = 41699032.

The previous prime is 83398061. The next prime is 83398109. The reversal of 83398066 is 66089338.

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

It can be written as a sum of positive squares in only one way, i.e., 82355625 + 1042441 = 9075^2 + 1021^2 .

It is not an unprimeable number, because it can be changed into a prime (83398061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20849515 + ... + 20849518.

Almost surely, 2^83398066 is an apocalyptic number.

83398066 is a deficient number, since it is larger than the sum of its proper divisors (41699036).

83398066 is a wasteful number, since it uses less digits than its factorization.

83398066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41699035.

The product of its (nonzero) digits is 186624, while the sum is 43.

The square root of 83398066 is about 9132.2541576546. The cubic root of 83398066 is about 436.9033014822.

The spelling of 83398066 in words is "eighty-three million, three hundred ninety-eight thousand, sixty-six".