12449715 has 16 divisors (see below), whose sum is σ = 19967136. Its totient is φ = 6624000.

The previous prime is 12449711. The next prime is 12449719. The reversal of 12449715 is 51794421.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12449711) and next prime (12449719).

It is not a de Polignac number, because 12449715 - 2² = 12449711 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12449711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8325 + ... + 9705.

It is an arithmetic number, because the mean of its divisors is an integer number (1247946).

Almost surely, 2^12449715 is an apocalyptic number.

12449715 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12449715 is a deficient number, since it is larger than the sum of its proper divisors (7517421).

12449715 is a wasteful number, since it uses less digits than its factorization.

12449715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1990.

The product of its digits is 10080, while the sum is 33.

The square root of 12449715 is about 3528.4153667050. The cubic root of 12449715 is about 231.7678203836.

The spelling of 12449715 in words is "twelve million, four hundred forty-nine thousand, seven hundred fifteen".