84947722 has 8 divisors (see below), whose sum is σ = 127548036. Its totient is φ = 42431712.

The previous prime is 84947683. The next prime is 84947729. The reversal of 84947722 is 22774948.

It can be written as a sum of positive squares in 2 ways, for example, as 72267001 + 12680721 = 8501^2 + 3561^2 .

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

It is a super-2 number, since 2×84947722² = 14432230945978568, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (84947729) 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, 18493 + ... + 22624.

Almost surely, 2^84947722 is an apocalyptic number.

84947722 is a deficient number, since it is larger than the sum of its proper divisors (42600314).

84947722 is a wasteful number, since it uses less digits than its factorization.

84947722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42152.

The product of its digits is 225792, while the sum is 43.

The square root of 84947722 is about 9216.7088486075. The cubic root of 84947722 is about 439.5928085487.

The spelling of 84947722 in words is "eighty-four million, nine hundred forty-seven thousand, seven hundred twenty-two".