84997237 has 6 divisors (see below), whose sum is σ = 91571298. Its totient is φ = 78428304.

The previous prime is 84997207. The next prime is 84997261. The reversal of 84997237 is 73279948.

It can be written as a sum of positive squares in 3 ways, for example, as 1347921 + 83649316 = 1161^2 + 9146^2 .

It is not a de Polignac number, because 84997237 - 2⁷ = 84997109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84997207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 31963 + ... + 34519.

It is an arithmetic number, because the mean of its divisors is an integer number (15261883).

Almost surely, 2^84997237 is an apocalyptic number.

It is an amenable number.

84997237 is a deficient number, since it is larger than the sum of its proper divisors (6574061).

84997237 is an frugal number, since it uses more digits than its factorization.

84997237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5127 (or 2570 counting only the distinct ones).

The product of its digits is 762048, while the sum is 49.

The square root of 84997237 is about 9219.3946113614. The cubic root of 84997237 is about 439.6782030699.

The spelling of 84997237 in words is "eighty-four million, nine hundred ninety-seven thousand, two hundred thirty-seven".