12293972 has 6 divisors (see below), whose sum is σ = 21514458. Its totient is φ = 6146984.

The previous prime is 12293971. The next prime is 12293989. The reversal of 12293972 is 27939221.

It can be written as a sum of positive squares in only one way, i.e., 12292036 + 1936 = 3506^2 + 44^2 .

It is a super-2 number, since 2×12293972² = 302283495073568, which contains 22 as substring.

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12293971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1536743 + ... + 1536750.

It is an arithmetic number, because the mean of its divisors is an integer number (3585743).

Almost surely, 2^12293972 is an apocalyptic number.

It is an amenable number.

12293972 is a deficient number, since it is larger than the sum of its proper divisors (9220486).

12293972 is a wasteful number, since it uses less digits than its factorization.

12293972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3073497 (or 3073495 counting only the distinct ones).

The product of its digits is 13608, while the sum is 35.

The square root of 12293972 is about 3506.2760872470. The cubic root of 12293972 is about 230.7973085039.

The spelling of 12293972 in words is "twelve million, two hundred ninety-three thousand, nine hundred seventy-two".