84909340 has 24 divisors (see below), whose sum is σ = 178601472. Its totient is φ = 33908160.

The previous prime is 84909337. The next prime is 84909359. The reversal of 84909340 is 4390948.

It is a self number, because there is not a number n which added to its sum of digits gives 84909340.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10405 + ... + 16675.

It is an arithmetic number, because the mean of its divisors is an integer number (7441728).

Almost surely, 2^84909340 is an apocalyptic number.

It is an amenable number.

84909340 is an abundant number, since it is smaller than the sum of its proper divisors (93692132).

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

84909340 is a wasteful number, since it uses less digits than its factorization.

84909340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6957 (or 6955 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 84909340 is about 9214.6264167355. The cubic root of 84909340 is about 439.5265913797.

The spelling of 84909340 in words is "eighty-four million, nine hundred nine thousand, three hundred forty".