103443407 has 4 divisors (see below), whose sum is σ = 103514736. Its totient is φ = 103372080.

The previous prime is 103443401. The next prime is 103443421. The reversal of 103443407 is 704344301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 704344301 = 59 ⋅11938039.

It is a cyclic number.

It is not a de Polignac number, because 103443407 - 2¹⁸ = 103181263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103443401) 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, 33443 + ... + 36404.

It is an arithmetic number, because the mean of its divisors is an integer number (25878684).

Almost surely, 2^103443407 is an apocalyptic number.

103443407 is a deficient number, since it is larger than the sum of its proper divisors (71329).

103443407 is an equidigital number, since it uses as much as digits as its factorization.

103443407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71328.

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 103443407 is about 10170.7132001645. The cubic root of 103443407 is about 469.4265028536.

Adding to 103443407 its reverse (704344301), we get a palindrome (807787708).

The spelling of 103443407 in words is "one hundred three million, four hundred forty-three thousand, four hundred seven".