10270921 has 4 divisors (see below), whose sum is σ = 10281412. Its totient is φ = 10260432.

The previous prime is 10270913. The next prime is 10270927. The reversal of 10270921 is 12907201.

10270921 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 12907201 = 307 ⋅42043.

It can be written as a sum of positive squares in 2 ways, for example, as 4888521 + 5382400 = 2211^2 + 2320^2 .

It is a cyclic number.

It is not a de Polignac number, because 10270921 - 2³ = 10270913 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10270892 and 10270901.

It is not an unprimeable number, because it can be changed into a prime (10270927) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3606 + ... + 5791.

It is an arithmetic number, because the mean of its divisors is an integer number (2570353).

Almost surely, 2^10270921 is an apocalyptic number.

It is an amenable number.

10270921 is a deficient number, since it is larger than the sum of its proper divisors (10491).

10270921 is an equidigital number, since it uses as much as digits as its factorization.

10270921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10490.

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

The square root of 10270921 is about 3204.8277644828. The cubic root of 10270921 is about 217.3717639289.

The spelling of 10270921 in words is "ten million, two hundred seventy thousand, nine hundred twenty-one".