84028637 has 32 divisors (see below), whose sum is σ = 115789824. Its totient is φ = 58924800.

The previous prime is 84028627. The next prime is 84028649. The reversal of 84028637 is 73682048.

It is not a de Polignac number, because 84028637 - 2¹² = 84024541 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 84028637.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84028627) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28712 + ... + 31502.

It is an arithmetic number, because the mean of its divisors is an integer number (3618432).

Almost surely, 2^84028637 is an apocalyptic number.

It is an amenable number.

84028637 is a deficient number, since it is larger than the sum of its proper divisors (31761187).

84028637 is a wasteful number, since it uses less digits than its factorization.

84028637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2849.

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 84028637 is about 9166.7135332135. The cubic root of 84028637 is about 438.0016767031.

The spelling of 84028637 in words is "eighty-four million, twenty-eight thousand, six hundred thirty-seven".