84997383923 has 2 divisors, whose sum is σ = 84997383924. Its totient is φ = 84997383922.

The previous prime is 84997383907. The next prime is 84997383931. The reversal of 84997383923 is 32938379948.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 84997383923 - 2⁴ = 84997383907 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 84997383923.

It is not a weakly prime, because it can be changed into another prime (84997383953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42498691961 + 42498691962.

It is an arithmetic number, because the mean of its divisors is an integer number (42498691962).

Almost surely, 2^84997383923 is an apocalyptic number.

84997383923 is a deficient number, since it is larger than the sum of its proper divisors (1).

84997383923 is an equidigital number, since it uses as much as digits as its factorization.

84997383923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 70543872, while the sum is 65.

The spelling of 84997383923 in words is "eighty-four billion, nine hundred ninety-seven million, three hundred eighty-three thousand, nine hundred twenty-three".