123798473 has 2 divisors, whose sum is σ = 123798474. Its totient is φ = 123798472.

The previous prime is 123798421. The next prime is 123798503. The reversal of 123798473 is 374897321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 80066704 + 43731769 = 8948^2 + 6613^2 .

It is an emirp because it is prime and its reverse (374897321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123798473 - 2⁸ = 123798217 is a prime.

It is a super-3 number, since 3×123798473³ (a number of 25 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (123798173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61899236 + 61899237.

It is an arithmetic number, because the mean of its divisors is an integer number (61899237).

Almost surely, 2^123798473 is an apocalyptic number.

It is an amenable number.

123798473 is a deficient number, since it is larger than the sum of its proper divisors (1).

123798473 is an equidigital number, since it uses as much as digits as its factorization.

123798473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 254016, while the sum is 44.

The square root of 123798473 is about 11126.4762166645. The cubic root of 123798473 is about 498.3928033734.

The spelling of 123798473 in words is "one hundred twenty-three million, seven hundred ninety-eight thousand, four hundred seventy-three".