84865149 has 24 divisors (see below), whose sum is σ = 125307000. Its totient is φ = 55334400.

The previous prime is 84865141. The next prime is 84865159. The reversal of 84865149 is 94156848.

It can be written as a sum of positive squares in 4 ways, for example, as 40068900 + 44796249 = 6330^2 + 6693^2 .

It is not a de Polignac number, because 84865149 - 2³ = 84865141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84865141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 80377 + ... + 81425.

It is an arithmetic number, because the mean of its divisors is an integer number (5221125).

Almost surely, 2^84865149 is an apocalyptic number.

84865149 is a gapful number since it is divisible by the number (89) formed by its first and last digit.

It is an amenable number.

84865149 is a deficient number, since it is larger than the sum of its proper divisors (40441851).

84865149 is a wasteful number, since it uses less digits than its factorization.

84865149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1245 (or 1242 counting only the distinct ones).

The product of its digits is 276480, while the sum is 45.

The square root of 84865149 is about 9212.2282320837. The cubic root of 84865149 is about 439.4503277235.

The spelling of 84865149 in words is "eighty-four million, eight hundred sixty-five thousand, one hundred forty-nine".