84407861 has 8 divisors (see below), whose sum is σ = 92713920. Its totient is φ = 76488192.

The previous prime is 84407857. The next prime is 84407881. The reversal of 84407861 is 16870448.

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

It is a cyclic number.

It is not a de Polignac number, because 84407861 - 2² = 84407857 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84407881) 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, 96140 + ... + 97013.

It is an arithmetic number, because the mean of its divisors is an integer number (11589240).

Almost surely, 2^84407861 is an apocalyptic number.

It is an amenable number.

84407861 is a deficient number, since it is larger than the sum of its proper divisors (8306059).

84407861 is a wasteful number, since it uses less digits than its factorization.

84407861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193195.

The product of its (nonzero) digits is 43008, while the sum is 38.

The square root of 84407861 is about 9187.3750875862. The cubic root of 84407861 is about 438.6595932804.

The spelling of 84407861 in words is "eighty-four million, four hundred seven thousand, eight hundred sixty-one".