10921207 has 8 divisors (see below), whose sum is σ = 12298752. Its totient is φ = 9607800.

The previous prime is 10921177. The next prime is 10921217. The reversal of 10921207 is 70212901.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10921207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10921217) 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, 15673 + ... + 16354.

It is an arithmetic number, because the mean of its divisors is an integer number (1537344).

Almost surely, 2^10921207 is an apocalyptic number.

10921207 is a deficient number, since it is larger than the sum of its proper divisors (1377545).

10921207 is a wasteful number, since it uses less digits than its factorization.

10921207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32069.

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

The square root of 10921207 is about 3304.7249507334. The cubic root of 10921207 is about 221.8657237939.

It can be divided in two parts, 109 and 21207, that added together give a square (21316 = 146²).

The spelling of 10921207 in words is "ten million, nine hundred twenty-one thousand, two hundred seven".