12958491 has 24 divisors (see below), whose sum is σ = 21648144. Its totient is φ = 6834240.

The previous prime is 12958487. The next prime is 12958493. The reversal of 12958491 is 19485921.

It is not a de Polignac number, because 12958491 - 2² = 12958487 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (12958493) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1480 + ... + 5301.

It is an arithmetic number, because the mean of its divisors is an integer number (902006).

Almost surely, 2^12958491 is an apocalyptic number.

12958491 is a deficient number, since it is larger than the sum of its proper divisors (8689653).

12958491 is a wasteful number, since it uses less digits than its factorization.

12958491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6811 (or 6804 counting only the distinct ones).

The product of its digits is 25920, while the sum is 39.

The square root of 12958491 is about 3599.7904105656. The cubic root of 12958491 is about 234.8829415495.

The spelling of 12958491 in words is "twelve million, nine hundred fifty-eight thousand, four hundred ninety-one".