84993940 has 24 divisors (see below), whose sum is σ = 184246272. Its totient is φ = 32900640.

The previous prime is 84993911. The next prime is 84993959. The reversal of 84993940 is 4939948.

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, 67924 + ... + 69163.

It is an arithmetic number, because the mean of its divisors is an integer number (7676928).

Almost surely, 2^84993940 is an apocalyptic number.

It is an amenable number.

84993940 is an abundant number, since it is smaller than the sum of its proper divisors (99252332).

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

84993940 is a wasteful number, since it uses less digits than its factorization.

84993940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137127 (or 137125 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 46.

The square root of 84993940 is about 9219.2158017914. The cubic root of 84993940 is about 439.6725180311.

The spelling of 84993940 in words is "eighty-four million, nine hundred ninety-three thousand, nine hundred forty".