926921 has 2 divisors, whose sum is σ = 926922. Its totient is φ = 926920.

The previous prime is 926903. The next prime is 926957. The reversal of 926921 is 129629.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 490000 + 436921 = 700^2 + 661^2 .

It is an emirp because it is prime and its reverse (129629) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 926921 - 2¹⁸ = 664777 is a prime.

It is an Ulam number.

It is a plaindrome in base 15.

It is not a weakly prime, because it can be changed into another prime (926971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 463460 + 463461.

It is an arithmetic number, because the mean of its divisors is an integer number (463461).

2⁹²⁶⁹²¹ is an apocalyptic number.

It is an amenable number.

926921 is a deficient number, since it is larger than the sum of its proper divisors (1).

926921 is an equidigital number, since it uses as much as digits as its factorization.

926921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1944, while the sum is 29.

The square root of 926921 is about 962.7673654627. The cubic root of 926921 is about 97.5021608112.

The spelling of 926921 in words is "nine hundred twenty-six thousand, nine hundred twenty-one".