839437494097 has 2 divisors, whose sum is σ = 839437494098. Its totient is φ = 839437494096.

The previous prime is 839437494037. The next prime is 839437494101. The reversal of 839437494097 is 790494734938.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 653948786241 + 185488707856 = 808671^2 + 430684^2 .

It is a cyclic number.

It is not a de Polignac number, because 839437494097 - 2¹⁵ = 839437461329 is a prime.

It is not a weakly prime, because it can be changed into another prime (839437494037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 419718747048 + 419718747049.

It is an arithmetic number, because the mean of its divisors is an integer number (419718747049).

Almost surely, 2^839437494097 is an apocalyptic number.

It is an amenable number.

839437494097 is a deficient number, since it is larger than the sum of its proper divisors (1).

839437494097 is an equidigital number, since it uses as much as digits as its factorization.

839437494097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 164602368, while the sum is 67.

The spelling of 839437494097 in words is "eight hundred thirty-nine billion, four hundred thirty-seven million, four hundred ninety-four thousand, ninety-seven".