12722477 has 8 divisors (see below), whose sum is σ = 13758336. Its totient is φ = 11718592.

The previous prime is 12722459. The next prime is 12722497. The reversal of 12722477 is 77422721.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12722477 - 2¹⁴ = 12706093 is a prime.

It is a super-2 number, since 2×12722477² = 323722842031058, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12722417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7163 + ... + 8760.

It is an arithmetic number, because the mean of its divisors is an integer number (1719792).

Almost surely, 2^12722477 is an apocalyptic number.

12722477 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

12722477 is a deficient number, since it is larger than the sum of its proper divisors (1035859).

12722477 is a wasteful number, since it uses less digits than its factorization.

12722477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15987.

The product of its digits is 10976, while the sum is 32.

The square root of 12722477 is about 3566.8581412778. The cubic root of 12722477 is about 233.4482153105.

The spelling of 12722477 in words is "twelve million, seven hundred twenty-two thousand, four hundred seventy-seven".