84210165 has 48 divisors (see below), whose sum is σ = 162152640. Its totient is φ = 41446080.

The previous prime is 84210157. The next prime is 84210173. The reversal of 84210165 is 56101248.

It is an interprime number because it is at equal distance from previous prime (84210157) and next prime (84210173).

It is not a de Polignac number, because 84210165 - 2³ = 84210157 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20970 + ... + 24660.

It is an arithmetic number, because the mean of its divisors is an integer number (3378180).

Almost surely, 2^84210165 is an apocalyptic number.

It is an amenable number.

84210165 is a deficient number, since it is larger than the sum of its proper divisors (77942475).

84210165 is a wasteful number, since it uses less digits than its factorization.

84210165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3731 (or 3712 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 84210165 is about 9176.6096680637. The cubic root of 84210165 is about 438.3168564827.

The spelling of 84210165 in words is "eighty-four million, two hundred ten thousand, one hundred sixty-five".