84951866 has 8 divisors (see below), whose sum is σ = 127484724. Its totient is φ = 42456960.

The previous prime is 84951863. The next prime is 84951883. The reversal of 84951866 is 66815948.

It can be written as a sum of positive squares in 2 ways, for example, as 75777025 + 9174841 = 8705^2 + 3029^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 84951866.

It is not an unprimeable number, because it can be changed into a prime (84951863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3005 + ... + 13376.

Almost surely, 2^84951866 is an apocalyptic number.

84951866 is a deficient number, since it is larger than the sum of its proper divisors (42532858).

84951866 is a wasteful number, since it uses less digits than its factorization.

84951866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18976.

The product of its digits is 414720, while the sum is 47.

The square root of 84951866 is about 9216.9336549636. The cubic root of 84951866 is about 439.5999566430.

The spelling of 84951866 in words is "eighty-four million, nine hundred fifty-one thousand, eight hundred sixty-six".