830979438173 has 2 divisors, whose sum is σ = 830979438174. Its totient is φ = 830979438172.

The previous prime is 830979438151. The next prime is 830979438197. The reversal of 830979438173 is 371834979038.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 811256887204 + 19722550969 = 900698^2 + 140437^2 .

It is a cyclic number.

It is not a de Polignac number, because 830979438173 - 2¹⁸ = 830979176029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (830979438143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 415489719086 + 415489719087.

It is an arithmetic number, because the mean of its divisors is an integer number (415489719087).

Almost surely, 2^830979438173 is an apocalyptic number.

It is an amenable number.

830979438173 is a deficient number, since it is larger than the sum of its proper divisors (1).

830979438173 is an equidigital number, since it uses as much as digits as its factorization.

830979438173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27433728, while the sum is 62.

The spelling of 830979438173 in words is "eight hundred thirty billion, nine hundred seventy-nine million, four hundred thirty-eight thousand, one hundred seventy-three".