13321407 has 8 divisors (see below), whose sum is σ = 19376640. Its totient is φ = 8073560.

The previous prime is 13321403. The next prime is 13321447. The reversal of 13321407 is 70412331.

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

It is not a de Polignac number, because 13321407 - 2² = 13321403 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13321403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 201807 + ... + 201872.

It is an arithmetic number, because the mean of its divisors is an integer number (2422080).

Almost surely, 2^13321407 is an apocalyptic number.

13321407 is a deficient number, since it is larger than the sum of its proper divisors (6055233).

13321407 is a wasteful number, since it uses less digits than its factorization.

13321407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403693.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 13321407 is about 3649.8502709015. The cubic root of 13321407 is about 237.0554980501.

Adding to 13321407 its reverse (70412331), we get a palindrome (83733738).

The spelling of 13321407 in words is "thirteen million, three hundred twenty-one thousand, four hundred seven".