84292661 has 2 divisors, whose sum is σ = 84292662. Its totient is φ = 84292660.

The previous prime is 84292657. The next prime is 84292673. The reversal of 84292661 is 16629248.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43970161 + 40322500 = 6631^2 + 6350^2 .

It is a cyclic number.

It is not a de Polignac number, because 84292661 - 2² = 84292657 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84292561) 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 as a sum of consecutive naturals, namely, 42146330 + 42146331.

It is an arithmetic number, because the mean of its divisors is an integer number (42146331).

Almost surely, 2^84292661 is an apocalyptic number.

It is an amenable number.

84292661 is a deficient number, since it is larger than the sum of its proper divisors (1).

84292661 is an equidigital number, since it uses as much as digits as its factorization.

84292661 is an odious number, because the sum of its binary digits is odd.

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

The square root of 84292661 is about 9181.1034739839. The cubic root of 84292661 is about 438.4599412913.

The spelling of 84292661 in words is "eighty-four million, two hundred ninety-two thousand, six hundred sixty-one".