103809897 has 16 divisors (see below), whose sum is σ = 154140480. Its totient is φ = 69050016.

The previous prime is 103809859. The next prime is 103809899. The reversal of 103809897 is 798908301.

It is not a de Polignac number, because 103809897 - 2¹⁸ = 103547753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (103809899) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8493 + ... + 16725.

It is an arithmetic number, because the mean of its divisors is an integer number (9633780).

Almost surely, 2^103809897 is an apocalyptic number.

It is an amenable number.

103809897 is a deficient number, since it is larger than the sum of its proper divisors (50330583).

103809897 is an equidigital number, since it uses as much as digits as its factorization.

103809897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8709 (or 8703 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The square root of 103809897 is about 10188.7141975816. The cubic root of 103809897 is about 469.9802270239.

It can be divided in two parts, 103 and 809897, that added together give a 4-th power (810000 = 30⁴).

The spelling of 103809897 in words is "one hundred three million, eight hundred nine thousand, eight hundred ninety-seven".