84724722 has 24 divisors (see below), whose sum is σ = 183740076. Its totient is φ = 28215456.

The previous prime is 84724699. The next prime is 84724723. The reversal of 84724722 is 22742748.

It can be written as a sum of positive squares in 2 ways, for example, as 66243321 + 18481401 = 8139^2 + 4299^2 .

It is not an unprimeable number, because it can be changed into a prime (84724723) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34768 + ... + 37124.

Almost surely, 2^84724722 is an apocalyptic number.

84724722 is an abundant number, since it is smaller than the sum of its proper divisors (99015354).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

84724722 is a wasteful number, since it uses less digits than its factorization.

84724722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4362 (or 4359 counting only the distinct ones).

The product of its digits is 50176, while the sum is 36.

The square root of 84724722 is about 9204.6033048687. The cubic root of 84724722 is about 439.2078066535.

The spelling of 84724722 in words is "eighty-four million, seven hundred twenty-four thousand, seven hundred twenty-two".