13397506 has 8 divisors (see below), whose sum is σ = 20274444. Its totient is φ = 6639360.

The previous prime is 13397497. The next prime is 13397509. The reversal of 13397506 is 60579331.

It can be written as a sum of positive squares in 2 ways, for example, as 13256881 + 140625 = 3641^2 + 375^2 .

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

It is not an unprimeable number, because it can be changed into a prime (13397509) 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, 29415 + ... + 29866.

Almost surely, 2^13397506 is an apocalyptic number.

13397506 is a deficient number, since it is larger than the sum of its proper divisors (6876938).

13397506 is a wasteful number, since it uses less digits than its factorization.

13397506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59396.

The product of its (nonzero) digits is 17010, while the sum is 34.

The square root of 13397506 is about 3660.2603732522. The cubic root of 13397506 is about 237.5060371503.

The spelling of 13397506 in words is "thirteen million, three hundred ninety-seven thousand, five hundred six".