84819253 has 4 divisors (see below), whose sum is σ = 86085280. Its totient is φ = 83553228.

The previous prime is 84819199. The next prime is 84819271. The reversal of 84819253 is 35291848.

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 84819253 - 2²⁵ = 51264821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84819353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 632913 + ... + 633046.

It is an arithmetic number, because the mean of its divisors is an integer number (21521320).

Almost surely, 2^84819253 is an apocalyptic number.

It is an amenable number.

84819253 is a deficient number, since it is larger than the sum of its proper divisors (1266027).

84819253 is a wasteful number, since it uses less digits than its factorization.

84819253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1266026.

The product of its digits is 69120, while the sum is 40.

The square root of 84819253 is about 9209.7368583473. The cubic root of 84819253 is about 439.3710935916.

The spelling of 84819253 in words is "eighty-four million, eight hundred nineteen thousand, two hundred fifty-three".