103691971 has 4 divisors (see below), whose sum is σ = 103753944. Its totient is φ = 103630000.

The previous prime is 103691921. The next prime is 103691999. The reversal of 103691971 is 179196301.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 103691971 - 2⁹ = 103691459 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 103691971.

It is not an unprimeable number, because it can be changed into a prime (103691921) 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, 28405 + ... + 31846.

It is an arithmetic number, because the mean of its divisors is an integer number (25938486).

Almost surely, 2^103691971 is an apocalyptic number.

103691971 is a deficient number, since it is larger than the sum of its proper divisors (61973).

103691971 is an equidigital number, since it uses as much as digits as its factorization.

103691971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61972.

The product of its (nonzero) digits is 10206, while the sum is 37.

The square root of 103691971 is about 10182.9254637359. The cubic root of 103691971 is about 469.8021968311.

The spelling of 103691971 in words is "one hundred three million, six hundred ninety-one thousand, nine hundred seventy-one".