123862399 has 2 divisors, whose sum is σ = 123862400. Its totient is φ = 123862398.

The previous prime is 123862379. The next prime is 123862423. The reversal of 123862399 is 993268321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123862399 - 2⁵ = 123862367 is a prime.

It is a super-4 number, since 4×123862399⁴ (a number of 33 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123862309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61931199 + 61931200.

It is an arithmetic number, because the mean of its divisors is an integer number (61931200).

Almost surely, 2^123862399 is an apocalyptic number.

123862399 is a deficient number, since it is larger than the sum of its proper divisors (1).

123862399 is an equidigital number, since it uses as much as digits as its factorization.

123862399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 139968, while the sum is 43.

The square root of 123862399 is about 11129.3485433784. The cubic root of 123862399 is about 498.4785738874.

The spelling of 123862399 in words is "one hundred twenty-three million, eight hundred sixty-two thousand, three hundred ninety-nine".