12958417 has 4 divisors (see below), whose sum is σ = 13234176. Its totient is φ = 12682660.

The previous prime is 12958411. The next prime is 12958427. The reversal of 12958417 is 71485921.

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 an emirpimes, since its reverse is a distinct semiprime: 71485921 = 13 ⋅5498917.

It is a cyclic number.

It is not a de Polignac number, because 12958417 - 2⁷ = 12958289 is a prime.

It is a super-2 number, since 2×12958417² = 335841142291778, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12958411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137809 + ... + 137902.

It is an arithmetic number, because the mean of its divisors is an integer number (3308544).

Almost surely, 2^12958417 is an apocalyptic number.

It is an amenable number.

12958417 is a deficient number, since it is larger than the sum of its proper divisors (275759).

12958417 is an equidigital number, since it uses as much as digits as its factorization.

12958417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275758.

The product of its digits is 20160, while the sum is 37.

The square root of 12958417 is about 3599.7801321747. The cubic root of 12958417 is about 234.8824944457.

The spelling of 12958417 in words is "twelve million, nine hundred fifty-eight thousand, four hundred seventeen".