84465861 has 8 divisors (see below), whose sum is σ = 112689984. Its totient is φ = 56276160.

The previous prime is 84465847. The next prime is 84465881. The reversal of 84465861 is 16856448.

84465861 is nontrivially palindromic in base 14.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 84465861 - 2⁹ = 84465349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84465841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2196 + ... + 13181.

It is an arithmetic number, because the mean of its divisors is an integer number (14086248).

Almost surely, 2^84465861 is an apocalyptic number.

It is an amenable number.

84465861 is a deficient number, since it is larger than the sum of its proper divisors (28224123).

84465861 is a wasteful number, since it uses less digits than its factorization.

84465861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17211.

The product of its digits is 184320, while the sum is 42.

The square root of 84465861 is about 9190.5310510329. The cubic root of 84465861 is about 438.7600437632.

The spelling of 84465861 in words is "eighty-four million, four hundred sixty-five thousand, eight hundred sixty-one".