15894097 has 2 divisors, whose sum is σ = 15894098. Its totient is φ = 15894096.

The previous prime is 15894091. The next prime is 15894119. The reversal of 15894097 is 79049851.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8473921 + 7420176 = 2911^2 + 2724^2 .

It is an emirp because it is prime and its reverse (79049851) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15894097 - 2¹¹ = 15892049 is a prime.

It is not a weakly prime, because it can be changed into another prime (15894091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7947048 + 7947049.

It is an arithmetic number, because the mean of its divisors is an integer number (7947049).

Almost surely, 2^15894097 is an apocalyptic number.

It is an amenable number.

15894097 is a deficient number, since it is larger than the sum of its proper divisors (1).

15894097 is an equidigital number, since it uses as much as digits as its factorization.

15894097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 43.

The square root of 15894097 is about 3986.7401470374. The cubic root of 15894097 is about 251.4270229237.

The spelling of 15894097 in words is "fifteen million, eight hundred ninety-four thousand, ninety-seven".