84011636 has 12 divisors (see below), whose sum is σ = 147632100. Its totient is φ = 41831040.

The previous prime is 84011633. The next prime is 84011647. The reversal of 84011636 is 63611048.

It can be written as a sum of positive squares in 2 ways, for example, as 38987536 + 45024100 = 6244^2 + 6710^2 .

It is a junction number, because it is equal to n+sod(n) for n = 84011599 and 84011608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84011633) 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, 42611 + ... + 44538.

It is an arithmetic number, because the mean of its divisors is an integer number (12302675).

Almost surely, 2^84011636 is an apocalyptic number.

It is an amenable number.

84011636 is a deficient number, since it is larger than the sum of its proper divisors (63620464).

84011636 is a wasteful number, since it uses less digits than its factorization.

84011636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87394 (or 87392 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 84011636 is about 9165.7861637723. The cubic root of 84011636 is about 437.9721353109.

The spelling of 84011636 in words is "eighty-four million, eleven thousand, six hundred thirty-six".