84617122 has 4 divisors (see below), whose sum is σ = 126925686. Its totient is φ = 42308560.

The previous prime is 84617111. The next prime is 84617123. The reversal of 84617122 is 22171648.

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., 67551961 + 17065161 = 8219^2 + 4131^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (84617123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21154279 + ... + 21154282.

Almost surely, 2^84617122 is an apocalyptic number.

84617122 is a deficient number, since it is larger than the sum of its proper divisors (42308564).

84617122 is a wasteful number, since it uses less digits than its factorization.

84617122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42308563.

The product of its digits is 5376, while the sum is 31.

The square root of 84617122 is about 9198.7565464034. The cubic root of 84617122 is about 439.0217972687.

The spelling of 84617122 in words is "eighty-four million, six hundred seventeen thousand, one hundred twenty-two".