84412357 has 2 divisors, whose sum is σ = 84412358. Its totient is φ = 84412356.

The previous prime is 84412343. The next prime is 84412439. The reversal of 84412357 is 75321448.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57017601 + 27394756 = 7551^2 + 5234^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84412357 is a prime.

It is a super-3 number, since 3×84412357³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84412057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42206178 + 42206179.

It is an arithmetic number, because the mean of its divisors is an integer number (42206179).

Almost surely, 2^84412357 is an apocalyptic number.

It is an amenable number.

84412357 is a deficient number, since it is larger than the sum of its proper divisors (1).

84412357 is an equidigital number, since it uses as much as digits as its factorization.

84412357 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26880, while the sum is 34.

The square root of 84412357 is about 9187.6197679268. The cubic root of 84412357 is about 438.6673815697.

Subtracting from 84412357 its reverse (75321448), we obtain a palindrome (9090909).

The spelling of 84412357 in words is "eighty-four million, four hundred twelve thousand, three hundred fifty-seven".