10722257 has 32 divisors (see below), whose sum is σ = 14515200. Its totient is φ = 7676928.

The previous prime is 10722227. The next prime is 10722277. The reversal of 10722257 is 75222701.

It is a de Polignac number, because none of the positive numbers 2^k-10722257 is a prime.

It is a super-2 number, since 2×10722257² = 229933590348098, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10722227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44744 + ... + 44982.

It is an arithmetic number, because the mean of its divisors is an integer number (453600).

Almost surely, 2^10722257 is an apocalyptic number.

10722257 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

10722257 is a deficient number, since it is larger than the sum of its proper divisors (3792943).

10722257 is a wasteful number, since it uses less digits than its factorization.

10722257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305.

The product of its (nonzero) digits is 1960, while the sum is 26.

The square root of 10722257 is about 3274.4857611540. The cubic root of 10722257 is about 220.5102276027.

Adding to 10722257 its reverse (75222701), we get a palindrome (85944958).

The spelling of 10722257 in words is "ten million, seven hundred twenty-two thousand, two hundred fifty-seven".