84693940 has 12 divisors (see below), whose sum is σ = 177857316. Its totient is φ = 33877568.

The previous prime is 84693929. The next prime is 84693967. The reversal of 84693940 is 4939648.

It can be written as a sum of positive squares in 2 ways, for example, as 56942116 + 27751824 = 7546^2 + 5268^2 .

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, 2117329 + ... + 2117368.

It is an arithmetic number, because the mean of its divisors is an integer number (14821443).

Almost surely, 2^84693940 is an apocalyptic number.

It is an amenable number.

84693940 is an abundant number, since it is smaller than the sum of its proper divisors (93163376).

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

84693940 is a wasteful number, since it uses less digits than its factorization.

84693940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4234706 (or 4234704 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 43.

The square root of 84693940 is about 9202.9310548325. The cubic root of 84693940 is about 439.1546095385.

The spelling of 84693940 in words is "eighty-four million, six hundred ninety-three thousand, nine hundred forty".