84030866 has 4 divisors (see below), whose sum is σ = 126046302. Its totient is φ = 42015432.

The previous prime is 84030851. The next prime is 84030871. The reversal of 84030866 is 66803048.

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., 52345225 + 31685641 = 7235^2 + 5629^2 .

It is a super-2 number, since 2×84030866² = 14122372881419912, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21007715 + ... + 21007718.

Almost surely, 2^84030866 is an apocalyptic number.

84030866 is a deficient number, since it is larger than the sum of its proper divisors (42015436).

84030866 is a wasteful number, since it uses less digits than its factorization.

84030866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42015435.

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 84030866 is about 9166.8351136038. The cubic root of 84030866 is about 438.0055495777.

The spelling of 84030866 in words is "eighty-four million, thirty thousand, eight hundred sixty-six".