84097666 has 4 divisors (see below), whose sum is σ = 126146502. Its totient is φ = 42048832.

The previous prime is 84097649. The next prime is 84097687. The reversal of 84097666 is 66679048.

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., 54449641 + 29648025 = 7379^2 + 5445^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21024415 + ... + 21024418.

Almost surely, 2^84097666 is an apocalyptic number.

84097666 is a deficient number, since it is larger than the sum of its proper divisors (42048836).

84097666 is a wasteful number, since it uses less digits than its factorization.

84097666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42048835.

The product of its (nonzero) digits is 435456, while the sum is 46.

The square root of 84097666 is about 9170.4779591906. The cubic root of 84097666 is about 438.1215824216.

The spelling of 84097666 in words is "eighty-four million, ninety-seven thousand, six hundred sixty-six".