84022691 has 2 divisors, whose sum is σ = 84022692. Its totient is φ = 84022690.

The previous prime is 84022669. The next prime is 84022723. The reversal of 84022691 is 19622048.

It is an a-pointer prime, because the next prime (84022723) can be obtained adding 84022691 to its sum of digits (32).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84022691 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (84022621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42011345 + 42011346.

It is an arithmetic number, because the mean of its divisors is an integer number (42011346).

Almost surely, 2^84022691 is an apocalyptic number.

84022691 is a deficient number, since it is larger than the sum of its proper divisors (1).

84022691 is an equidigital number, since it uses as much as digits as its factorization.

84022691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 84022691 is about 9166.3892018613. The cubic root of 84022691 is about 437.9913452277.

The spelling of 84022691 in words is "eighty-four million, twenty-two thousand, six hundred ninety-one".