1958479 has 4 divisors (see below), whose sum is σ = 1961280. Its totient is φ = 1955680.

The previous prime is 1958471. The next prime is 1958497. The reversal of 1958479 is 9748591.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1958479 - 2³ = 1958471 is a prime.

It is a d-powerful number, because it can be written as 1 + 9 + 5⁹ + 8³ + 4⁶ + 7 + 9³ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1958471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 642 + ... + 2080.

It is an arithmetic number, because the mean of its divisors is an integer number (490320).

2^1958479 is an apocalyptic number.

1958479 is a deficient number, since it is larger than the sum of its proper divisors (2801).

1958479 is a wasteful number, since it uses less digits than its factorization.

1958479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2800.

The product of its digits is 90720, while the sum is 43.

The square root of 1958479 is about 1399.4566802870. The cubic root of 1958479 is about 125.1141144581.

The spelling of 1958479 in words is "one million, nine hundred fifty-eight thousand, four hundred seventy-nine".