84687740 has 12 divisors (see below), whose sum is σ = 177844296. Its totient is φ = 33875088.

The previous prime is 84687719. The next prime is 84687751. The reversal of 84687740 is 4778648.

It is a junction number, because it is equal to n+sod(n) for n = 84687691 and 84687700.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2117174 + ... + 2117213.

It is an arithmetic number, because the mean of its divisors is an integer number (14820358).

Almost surely, 2^84687740 is an apocalyptic number.

It is an amenable number.

84687740 is an abundant number, since it is smaller than the sum of its proper divisors (93156556).

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

84687740 is a wasteful number, since it uses less digits than its factorization.

84687740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4234396 (or 4234394 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 44.

The square root of 84687740 is about 9202.5941994635. The cubic root of 84687740 is about 439.1438932069.

The spelling of 84687740 in words is "eighty-four million, six hundred eighty-seven thousand, seven hundred forty".