1049639 has 2 divisors, whose sum is σ = 1049640. Its totient is φ = 1049638.

The previous prime is 1049623. The next prime is 1049663. The reversal of 1049639 is 9369401.

It is a weak prime.

It is an emirp because it is prime and its reverse (9369401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1049639 - 2⁴ = 1049623 is a prime.

It is a super-2 number, since 2×1049639² = 2203484060642, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1049039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 524819 + 524820.

It is an arithmetic number, because the mean of its divisors is an integer number (524820).

2^1049639 is an apocalyptic number.

1049639 is a deficient number, since it is larger than the sum of its proper divisors (1).

1049639 is an equidigital number, since it uses as much as digits as its factorization.

1049639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 1049639 is about 1024.5189114897. The cubic root of 1049639 is about 101.6279861214.

The spelling of 1049639 in words is "one million, forty-nine thousand, six hundred thirty-nine".