84194461 has 4 divisors (see below), whose sum is σ = 90670972. Its totient is φ = 77717952.

The previous prime is 84194447. The next prime is 84194479. The reversal of 84194461 is 16449148.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 49266361 + 34928100 = 7019^2 + 5910^2 .

It is not a de Polignac number, because 84194461 - 2¹¹ = 84192413 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 84194461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84194401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3238236 + ... + 3238261.

It is an arithmetic number, because the mean of its divisors is an integer number (22667743).

Almost surely, 2^84194461 is an apocalyptic number.

It is an amenable number.

84194461 is a deficient number, since it is larger than the sum of its proper divisors (6476511).

84194461 is a wasteful number, since it uses less digits than its factorization.

84194461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6476510.

The product of its digits is 27648, while the sum is 37.

The square root of 84194461 is about 9175.7539744699. The cubic root of 84194461 is about 438.2896081655.

It can be divided in two parts, 8419 and 4461, that added together give a triangular number (12880 = T₁₆₀).

The spelling of 84194461 in words is "eighty-four million, one hundred ninety-four thousand, four hundred sixty-one".