13397578 has 8 divisors (see below), whose sum is σ = 20113668. Its totient is φ = 6693024.

The previous prime is 13397567. The next prime is 13397591. The reversal of 13397578 is 87579331.

13397578 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 12411529 + 986049 = 3523^2 + 993^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a plaindrome in base 15.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1150 + ... + 5302.

Almost surely, 2^13397578 is an apocalyptic number.

13397578 is a deficient number, since it is larger than the sum of its proper divisors (6716090).

13397578 is a wasteful number, since it uses less digits than its factorization.

13397578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5768.

The product of its digits is 158760, while the sum is 43.

The square root of 13397578 is about 3660.2702086048. The cubic root of 13397578 is about 237.5064626127.

The spelling of 13397578 in words is "thirteen million, three hundred ninety-seven thousand, five hundred seventy-eight".