10707921 has 18 divisors (see below), whose sum is σ = 17992962. Its totient is φ = 6118560.

The previous prime is 10707901. The next prime is 10707937. The reversal of 10707921 is 12970701.

10707921 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 can be written as a sum of positive squares in only one way, i.e., 10595025 + 112896 = 3255^2 + 336^2 .

It is not a de Polignac number, because 10707921 - 2⁵ = 10707889 is a prime.

It is a super-2 number, since 2×10707921² = 229319144284482, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (10707901) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 11700 + ... + 12581.

It is an arithmetic number, because the mean of its divisors is an integer number (999609).

Almost surely, 2^10707921 is an apocalyptic number.

It is an amenable number.

10707921 is a deficient number, since it is larger than the sum of its proper divisors (7285041).

10707921 is a wasteful number, since it uses less digits than its factorization.

10707921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24301 (or 24291 counting only the distinct ones).

The product of its (nonzero) digits is 882, while the sum is 27.

The square root of 10707921 is about 3272.2959829453. The cubic root of 10707921 is about 220.4119073653.

It can be divided in two parts, 10707 and 921, that added together give a triangular number (11628 = T₁₅₂).

The spelling of 10707921 in words is "ten million, seven hundred seven thousand, nine hundred twenty-one".