84345249 has 8 divisors (see below), whose sum is σ = 114304192. Its totient is φ = 55308240.

The previous prime is 84345229. The next prime is 84345259. The reversal of 84345249 is 94254348.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 84345249 - 2⁸ = 84344993 is a prime.

It is a super-2 number, since 2×84345249² = 14228242057744002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84345229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 230269 + ... + 230634.

It is an arithmetic number, because the mean of its divisors is an integer number (14288024).

Almost surely, 2^84345249 is an apocalyptic number.

It is an amenable number.

84345249 is a deficient number, since it is larger than the sum of its proper divisors (29958943).

84345249 is a wasteful number, since it uses less digits than its factorization.

84345249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460967.

The product of its digits is 138240, while the sum is 39.

The square root of 84345249 is about 9183.9669533378. The cubic root of 84345249 is about 438.5511035892.

Subtracting 84345249 from its reverse (94254348), we obtain a palindrome (9909099).

The spelling of 84345249 in words is "eighty-four million, three hundred forty-five thousand, two hundred forty-nine".