15973361 has 4 divisors (see below), whose sum is σ = 15981552. Its totient is φ = 15965172.

The previous prime is 15973327. The next prime is 15973409. The reversal of 15973361 is 16337951.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 16337951 = 7 ⋅2333993.

It is a cyclic number.

It is not a de Polignac number, because 15973361 - 2⁶ = 15973297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15973301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 710 + ... + 5696.

It is an arithmetic number, because the mean of its divisors is an integer number (3995388).

Almost surely, 2^15973361 is an apocalyptic number.

It is an amenable number.

15973361 is a deficient number, since it is larger than the sum of its proper divisors (8191).

15973361 is an equidigital number, since it uses as much as digits as its factorization.

15973361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8190.

The product of its digits is 17010, while the sum is 35.

The square root of 15973361 is about 3996.6687378365. The cubic root of 15973361 is about 251.8442863086.

The spelling of 15973361 in words is "fifteen million, nine hundred seventy-three thousand, three hundred sixty-one".