1050921 has 8 divisors (see below), whose sum is σ = 1556960. Its totient is φ = 700596.

The previous prime is 1050913. The next prime is 1050949. The reversal of 1050921 is 1290501.

It is not a de Polignac number, because 1050921 - 2³ = 1050913 is a prime.

It is a super-2 number, since 2×1050921² = 2208869896482, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1050894 and 1050903.

It is not an unprimeable number, because it can be changed into a prime (1050901) 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, 19435 + ... + 19488.

It is an arithmetic number, because the mean of its divisors is an integer number (194620).

2^1050921 is an apocalyptic number.

It is an amenable number.

1050921 is a deficient number, since it is larger than the sum of its proper divisors (506039).

1050921 is an equidigital number, since it uses as much as digits as its factorization.

1050921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38932 (or 38926 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 18.

The square root of 1050921 is about 1025.1443800753. The cubic root of 1050921 is about 101.6693444904.

The spelling of 1050921 in words is "one million, fifty thousand, nine hundred twenty-one".