12432761 has 4 divisors (see below), whose sum is σ = 13563024. Its totient is φ = 11302500.

The previous prime is 12432757. The next prime is 12432773. The reversal of 12432761 is 16723421.

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.

It is not a de Polignac number, because 12432761 - 2² = 12432757 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12432761.

It is not an unprimeable number, because it can be changed into a prime (12432701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 565115 + ... + 565136.

It is an arithmetic number, because the mean of its divisors is an integer number (3390756).

Almost surely, 2^12432761 is an apocalyptic number.

12432761 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12432761 is a deficient number, since it is larger than the sum of its proper divisors (1130263).

12432761 is a wasteful number, since it uses less digits than its factorization.

12432761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1130262.

The product of its digits is 2016, while the sum is 26.

The square root of 12432761 is about 3526.0120532976. The cubic root of 12432761 is about 231.6625655871.

It can be divided in two parts, 1243 and 2761, that added together give a palindrome (4004).

The spelling of 12432761 in words is "twelve million, four hundred thirty-two thousand, seven hundred sixty-one".