10972021 has 8 divisors (see below), whose sum is σ = 11648664. Its totient is φ = 10298880.

The previous prime is 10972001. The next prime is 10972033. The reversal of 10972021 is 12027901.

It can be written as a sum of positive squares in 4 ways, for example, as 2480625 + 8491396 = 1575^2 + 2914^2 .

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 10972021 - 2⁷ = 10971893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10971983 and 10972001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10972001) 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, 8601 + ... + 9793.

It is an arithmetic number, because the mean of its divisors is an integer number (1456083).

Almost surely, 2^10972021 is an apocalyptic number.

It is an amenable number.

10972021 is a deficient number, since it is larger than the sum of its proper divisors (676643).

10972021 is a wasteful number, since it uses less digits than its factorization.

10972021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1751.

The product of its (nonzero) digits is 252, while the sum is 22.

The square root of 10972021 is about 3312.4041118197. The cubic root of 10972021 is about 222.2092891455.

Adding to 10972021 its reverse (12027901), we get a palindrome (22999922).

The spelling of 10972021 in words is "ten million, nine hundred seventy-two thousand, twenty-one".