84857375 has 8 divisors (see below), whose sum is σ = 105902160. Its totient is φ = 67885800.

The previous prime is 84857371. The next prime is 84857407. The reversal of 84857375 is 57375848.

It is a happy number.

It is not a de Polignac number, because 84857375 - 2² = 84857371 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84857371) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 339305 + ... + 339554.

It is an arithmetic number, because the mean of its divisors is an integer number (13237770).

Almost surely, 2^84857375 is an apocalyptic number.

84857375 is a deficient number, since it is larger than the sum of its proper divisors (21044785).

84857375 is an equidigital number, since it uses as much as digits as its factorization.

84857375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678874 (or 678864 counting only the distinct ones).

The product of its digits is 940800, while the sum is 47.

The square root of 84857375 is about 9211.8062832433. The cubic root of 84857375 is about 439.4369088222.

The spelling of 84857375 in words is "eighty-four million, eight hundred fifty-seven thousand, three hundred seventy-five".