1958039 has 4 divisors (see below), whose sum is σ = 1990200. Its totient is φ = 1925880.

The previous prime is 1958029. The next prime is 1958041. The reversal of 1958039 is 9308591.

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 1958039 - 2¹² = 1953943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1958029) 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, 15989 + ... + 16110.

It is an arithmetic number, because the mean of its divisors is an integer number (497550).

2^1958039 is an apocalyptic number.

1958039 is a deficient number, since it is larger than the sum of its proper divisors (32161).

1958039 is an equidigital number, since it uses as much as digits as its factorization.

1958039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32160.

The product of its (nonzero) digits is 9720, while the sum is 35.

The square root of 1958039 is about 1399.2994675908. The cubic root of 1958039 is about 125.1047442047.

The spelling of 1958039 in words is "one million, nine hundred fifty-eight thousand, thirty-nine".