84274837 has 2 divisors, whose sum is σ = 84274838. Its totient is φ = 84274836.

The previous prime is 84274793. The next prime is 84274843. The reversal of 84274837 is 73847248.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79548561 + 4726276 = 8919^2 + 2174^2 .

It is a cyclic number.

It is not a de Polignac number, because 84274837 - 2¹¹ = 84272789 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 84274793 and 84274802.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84274037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42137418 + 42137419.

It is an arithmetic number, because the mean of its divisors is an integer number (42137419).

Almost surely, 2^84274837 is an apocalyptic number.

It is an amenable number.

84274837 is a deficient number, since it is larger than the sum of its proper divisors (1).

84274837 is an equidigital number, since it uses as much as digits as its factorization.

84274837 is an evil number, because the sum of its binary digits is even.

The product of its digits is 301056, while the sum is 43.

The square root of 84274837 is about 9180.1327332452. The cubic root of 84274837 is about 438.4290344452.

The spelling of 84274837 in words is "eighty-four million, two hundred seventy-four thousand, eight hundred thirty-seven".