84223757 has 4 divisors (see below), whose sum is σ = 85480896. Its totient is φ = 82966620.

The previous prime is 84223747. The next prime is 84223781. The reversal of 84223757 is 75732248.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 84223757 - 2⁸ = 84223501 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 84223757.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84223747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 628469 + ... + 628602.

It is an arithmetic number, because the mean of its divisors is an integer number (21370224).

Almost surely, 2^84223757 is an apocalyptic number.

It is an amenable number.

84223757 is a deficient number, since it is larger than the sum of its proper divisors (1257139).

84223757 is a wasteful number, since it uses less digits than its factorization.

84223757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1257138.

The product of its digits is 94080, while the sum is 38.

The square root of 84223757 is about 9177.3502167020. The cubic root of 84223757 is about 438.3404374926.

The spelling of 84223757 in words is "eighty-four million, two hundred twenty-three thousand, seven hundred fifty-seven".