84694481 has 2 divisors, whose sum is σ = 84694482. Its totient is φ = 84694480.

The previous prime is 84694453. The next prime is 84694537. The reversal of 84694481 is 18449648.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52432081 + 32262400 = 7241^2 + 5680^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84694481 is a prime.

It is a super-2 number, since 2×84694481² = 14346310223718722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (84694411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42347240 + 42347241.

It is an arithmetic number, because the mean of its divisors is an integer number (42347241).

Almost surely, 2^84694481 is an apocalyptic number.

It is an amenable number.

84694481 is a deficient number, since it is larger than the sum of its proper divisors (1).

84694481 is an equidigital number, since it uses as much as digits as its factorization.

84694481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 221184, while the sum is 44.

The square root of 84694481 is about 9202.9604475951. The cubic root of 84694481 is about 439.1555446000.

The spelling of 84694481 in words is "eighty-four million, six hundred ninety-four thousand, four hundred eighty-one".