84245437 has 2 divisors, whose sum is σ = 84245438. Its totient is φ = 84245436.

The previous prime is 84245429. The next prime is 84245443. The reversal of 84245437 is 73454248.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59305401 + 24940036 = 7701^2 + 4994^2 .

It is a cyclic number.

It is not a de Polignac number, because 84245437 - 2³ = 84245429 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 84245396 and 84245405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84245477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42122718 + 42122719.

It is an arithmetic number, because the mean of its divisors is an integer number (42122719).

Almost surely, 2^84245437 is an apocalyptic number.

It is an amenable number.

84245437 is a deficient number, since it is larger than the sum of its proper divisors (1).

84245437 is an equidigital number, since it uses as much as digits as its factorization.

84245437 is an evil number, because the sum of its binary digits is even.

The product of its digits is 107520, while the sum is 37.

The square root of 84245437 is about 9178.5313095288. The cubic root of 84245437 is about 438.3780452719.

It can be divided in two parts, 8424 and 5437, that added together give a triangular number (13861 = T₁₆₆).

The spelling of 84245437 in words is "eighty-four million, two hundred forty-five thousand, four hundred thirty-seven".