84220293 has 16 divisors (see below), whose sum is σ = 119116800. Its totient is φ = 52781040.

The previous prime is 84220249. The next prime is 84220309. The reversal of 84220293 is 39202248.

It is not a de Polignac number, because 84220293 - 2⁶ = 84220229 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 84220293.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84220223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1828 + ... + 13106.

It is an arithmetic number, because the mean of its divisors is an integer number (7444800).

Almost surely, 2^84220293 is an apocalyptic number.

It is an amenable number.

84220293 is a deficient number, since it is larger than the sum of its proper divisors (34896507).

84220293 is a wasteful number, since it uses less digits than its factorization.

84220293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11432.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 84220293 is about 9177.1614892624. The cubic root of 84220293 is about 438.3344279764.

The spelling of 84220293 in words is "eighty-four million, two hundred twenty thousand, two hundred ninety-three".