84646901 has 2 divisors, whose sum is σ = 84646902. Its totient is φ = 84646900.

The previous prime is 84646889. The next prime is 84646907. The reversal of 84646901 is 10964648.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69639025 + 15007876 = 8345^2 + 3874^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84646901 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84646907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42323450 + 42323451.

It is an arithmetic number, because the mean of its divisors is an integer number (42323451).

Almost surely, 2^84646901 is an apocalyptic number.

It is an amenable number.

84646901 is a deficient number, since it is larger than the sum of its proper divisors (1).

84646901 is an equidigital number, since it uses as much as digits as its factorization.

84646901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 84646901 is about 9200.3750467033. The cubic root of 84646901 is about 439.0732923501.

The spelling of 84646901 in words is "eighty-four million, six hundred forty-six thousand, nine hundred one".