123079897 has 2 divisors, whose sum is σ = 123079898. Its totient is φ = 123079896.

The previous prime is 123079861. The next prime is 123079903. The reversal of 123079897 is 798970321.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 119771136 + 3308761 = 10944^2 + 1819^2 .

It is a cyclic number.

It is not a de Polignac number, because 123079897 - 2¹¹ = 123077849 is a prime.

It is a super-2 number, since 2×123079897² = 30297322091061218, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (123079807) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61539948 + 61539949.

It is an arithmetic number, because the mean of its divisors is an integer number (61539949).

Almost surely, 2^123079897 is an apocalyptic number.

It is an amenable number.

123079897 is a deficient number, since it is larger than the sum of its proper divisors (1).

123079897 is an equidigital number, since it uses as much as digits as its factorization.

123079897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 190512, while the sum is 46.

The square root of 123079897 is about 11094.1379565967. The cubic root of 123079897 is about 497.4266410356.

The spelling of 123079897 in words is "one hundred twenty-three million, seventy-nine thousand, eight hundred ninety-seven".