1050639 has 4 divisors (see below), whose sum is σ = 1400856. Its totient is φ = 700424.

The previous prime is 1050631. The next prime is 1050713. The reversal of 1050639 is 9360501.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1050639 - 2³ = 1050631 is a prime.

It is a super-2 number, since 2×1050639² = 2207684616642, which contains 22 as substring.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1050631) 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, 175104 + ... + 175109.

It is an arithmetic number, because the mean of its divisors is an integer number (350214).

2^1050639 is an apocalyptic number.

1050639 is a deficient number, since it is larger than the sum of its proper divisors (350217).

1050639 is an equidigital number, since it uses as much as digits as its factorization.

1050639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350216.

The product of its (nonzero) digits is 810, while the sum is 24.

The square root of 1050639 is about 1025.0068292455. The cubic root of 1050639 is about 101.6602498264.

The spelling of 1050639 in words is "one million, fifty thousand, six hundred thirty-nine".