12903722 has 8 divisors (see below), whose sum is σ = 20844516. Its totient is φ = 5955552.

The previous prime is 12903721. The next prime is 12903727. The reversal of 12903722 is 22730921.

It can be written as a sum of positive squares in 2 ways, for example, as 12880921 + 22801 = 3589^2 + 151^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (26), and also a Moran number because the ratio is a prime number: 496297 = 12903722 / (1 + 2 + 9 + 0 + 3 + 7 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 12903691 and 12903700.

It is not an unprimeable number, because it can be changed into a prime (12903721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 248123 + ... + 248174.

Almost surely, 2^12903722 is an apocalyptic number.

12903722 is a deficient number, since it is larger than the sum of its proper divisors (7940794).

12903722 is a wasteful number, since it uses less digits than its factorization.

12903722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496312.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 12903722 is about 3592.1751070904. The cubic root of 12903722 is about 234.5515637129.

The spelling of 12903722 in words is "twelve million, nine hundred three thousand, seven hundred twenty-two".