84899785 has 16 divisors (see below), whose sum is σ = 112565376. Its totient is φ = 61143808.

The previous prime is 84899783. The next prime is 84899827. The reversal of 84899785 is 58799848.

It is a cyclic number.

It is not a de Polignac number, because 84899785 - 2¹ = 84899783 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84899783) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19759 + ... + 23668.

It is an arithmetic number, because the mean of its divisors is an integer number (7035336).

Almost surely, 2^84899785 is an apocalyptic number.

84899785 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

84899785 is a deficient number, since it is larger than the sum of its proper divisors (27665591).

84899785 is a wasteful number, since it uses less digits than its factorization.

84899785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43472.

The product of its digits is 5806080, while the sum is 58.

The square root of 84899785 is about 9214.1079329472. The cubic root of 84899785 is about 439.5101038566.

The spelling of 84899785 in words is "eighty-four million, eight hundred ninety-nine thousand, seven hundred eighty-five".