84213769 has 4 divisors (see below), whose sum is σ = 84381696. Its totient is φ = 84045844.

The previous prime is 84213761. The next prime is 84213781. The reversal of 84213769 is 96731248.

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 84213769 - 2³ = 84213761 is a prime.

It is a super-2 number, since 2×84213769² = 14183917778370722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84213761) 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, 83209 + ... + 84214.

It is an arithmetic number, because the mean of its divisors is an integer number (21095424).

Almost surely, 2^84213769 is an apocalyptic number.

It is an amenable number.

84213769 is a deficient number, since it is larger than the sum of its proper divisors (167927).

84213769 is a wasteful number, since it uses less digits than its factorization.

84213769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167926.

The product of its digits is 72576, while the sum is 40.

The square root of 84213769 is about 9176.8060347814. The cubic root of 84213769 is about 438.3231093755.

The spelling of 84213769 in words is "eighty-four million, two hundred thirteen thousand, seven hundred sixty-nine".