12453779 has 12 divisors (see below), whose sum is σ = 13725000. Its totient is φ = 11291904.

The previous prime is 12453769. The next prime is 12453811. The reversal of 12453779 is 97735421.

12453779 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12453779 - 2⁸ = 12453523 is a prime.

It is a super-2 number, since 2×12453779² = 310193222761682, which contains 22 as substring.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12453739) 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 11 ways as a sum of consecutive naturals, for example, 9347 + ... + 10595.

It is an arithmetic number, because the mean of its divisors is an integer number (1143750).

Almost surely, 2^12453779 is an apocalyptic number.

12453779 is a deficient number, since it is larger than the sum of its proper divisors (1271221).

12453779 is a wasteful number, since it uses less digits than its factorization.

12453779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1334 (or 1321 counting only the distinct ones).

The product of its digits is 52920, while the sum is 38.

The square root of 12453779 is about 3528.9912156309. The cubic root of 12453779 is about 231.7930365419.

The spelling of 12453779 in words is "twelve million, four hundred fifty-three thousand, seven hundred seventy-nine".