10791421 has 2 divisors, whose sum is σ = 10791422. Its totient is φ = 10791420.

The previous prime is 10791419. The next prime is 10791427. The reversal of 10791421 is 12419701.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10791225 + 196 = 3285^2 + 14^2 .

It is a cyclic number.

It is not a de Polignac number, because 10791421 - 2¹ = 10791419 is a prime.

Together with 10791419, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10791427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5395710 + 5395711.

It is an arithmetic number, because the mean of its divisors is an integer number (5395711).

Almost surely, 2^10791421 is an apocalyptic number.

It is an amenable number.

10791421 is a deficient number, since it is larger than the sum of its proper divisors (1).

10791421 is an equidigital number, since it uses as much as digits as its factorization.

10791421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 25.

The square root of 10791421 is about 3285.0298324368. The cubic root of 10791421 is about 220.9833460693.

It can be divided in two parts, 1079 and 1421, that added together give a square (2500 = 50²).

The spelling of 10791421 in words is "ten million, seven hundred ninety-one thousand, four hundred twenty-one".