949021 has 2 divisors, whose sum is σ = 949022. Its totient is φ = 949020.

The previous prime is 949019. The next prime is 949033. The reversal of 949021 is 120949.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 784996 + 164025 = 886^2 + 405^2 .

It is a cyclic number.

It is not a de Polignac number, because 949021 - 2¹ = 949019 is a prime.

Together with 949019, it forms a pair of twin primes.

949021 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (949001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 474510 + 474511.

It is an arithmetic number, because the mean of its divisors is an integer number (474511).

2⁹⁴⁹⁰²¹ is an apocalyptic number.

It is an amenable number.

949021 is a deficient number, since it is larger than the sum of its proper divisors (1).

949021 is an equidigital number, since it uses as much as digits as its factorization.

949021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 949021 is about 974.1770886240. The cubic root of 949021 is about 98.2709770963.

The spelling of 949021 in words is "nine hundred forty-nine thousand, twenty-one".