12922761 has 4 divisors (see below), whose sum is σ = 17230352. Its totient is φ = 8615172.

The previous prime is 12922739. The next prime is 12922769. The reversal of 12922761 is 16722921.

12922761 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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: 16722921 = 3 ⋅5574307.

It is not a de Polignac number, because 12922761 - 2⁷ = 12922633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12922769) 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, 2153791 + ... + 2153796.

It is an arithmetic number, because the mean of its divisors is an integer number (4307588).

Almost surely, 2^12922761 is an apocalyptic number.

It is an amenable number.

12922761 is a deficient number, since it is larger than the sum of its proper divisors (4307591).

12922761 is an equidigital number, since it uses as much as digits as its factorization.

12922761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4307590.

The product of its digits is 3024, while the sum is 30.

The square root of 12922761 is about 3594.8241959795. The cubic root of 12922761 is about 234.6668646244. Note that the first 3 decimals are identical.

The spelling of 12922761 in words is "twelve million, nine hundred twenty-two thousand, seven hundred sixty-one".