12722073 has 16 divisors (see below), whose sum is σ = 20877696. Its totient is φ = 6710400.

The previous prime is 12722071. The next prime is 12722089. The reversal of 12722073 is 37022721.

12722073 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 not a de Polignac number, because 12722073 - 2¹ = 12722071 is a prime.

It is a super-2 number, since 2×12722073² = 323702282834658, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12722071) 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, 23028 + ... + 23573.

It is an arithmetic number, because the mean of its divisors is an integer number (1304856).

Almost surely, 2^12722073 is an apocalyptic number.

12722073 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12722073 is a deficient number, since it is larger than the sum of its proper divisors (8155623).

12722073 is a wasteful number, since it uses less digits than its factorization.

12722073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46624.

The product of its (nonzero) digits is 1176, while the sum is 24.

The square root of 12722073 is about 3566.8015083545. The cubic root of 12722073 is about 233.4457442488.

Adding to 12722073 its reverse (37022721), we get a palindrome (49744794).

The spelling of 12722073 in words is "twelve million, seven hundred twenty-two thousand, seventy-three".