103388399 has 4 divisors (see below), whose sum is σ = 103410264. Its totient is φ = 103366536.

The previous prime is 103388371. The next prime is 103388401. The reversal of 103388399 is 993883301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 993883301 = 2179 ⋅456119.

It is a cyclic number.

It is not a de Polignac number, because 103388399 - 2²⁴ = 86611183 is a prime.

It is a super-2 number, since 2×103388399² = 21378322095566402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103382399) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 557 + ... + 14390.

It is an arithmetic number, because the mean of its divisors is an integer number (25852566).

Almost surely, 2^103388399 is an apocalyptic number.

103388399 is a deficient number, since it is larger than the sum of its proper divisors (21865).

103388399 is an equidigital number, since it uses as much as digits as its factorization.

103388399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21864.

The product of its (nonzero) digits is 139968, while the sum is 44.

The square root of 103388399 is about 10168.0086054252. The cubic root of 103388399 is about 469.3432792749.

The spelling of 103388399 in words is "one hundred three million, three hundred eighty-eight thousand, three hundred ninety-nine".