1058639 has 2 divisors, whose sum is σ = 1058640. Its totient is φ = 1058638.

The previous prime is 1058627. The next prime is 1058653. The reversal of 1058639 is 9368501.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1058639 - 2⁸ = 1058383 is a prime.

It is a super-2 number, since 2×1058639² = 2241433064642, 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 (1058339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 529319 + 529320.

It is an arithmetic number, because the mean of its divisors is an integer number (529320).

2^1058639 is an apocalyptic number.

1058639 is a deficient number, since it is larger than the sum of its proper divisors (1).

1058639 is an equidigital number, since it uses as much as digits as its factorization.

1058639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 1058639 is about 1028.9018417711. The cubic root of 1058639 is about 101.9176254060.

The spelling of 1058639 in words is "one million, fifty-eight thousand, six hundred thirty-nine".