1399058 has 4 divisors (see below), whose sum is σ = 2098590. Its totient is φ = 699528.

The previous prime is 1399039. The next prime is 1399063. The reversal of 1399058 is 8509931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8509931 = 23 ⋅369997.

It can be written as a sum of positive squares in only one way, i.e., 779689 + 619369 = 883^2 + 787^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 349763 + ... + 349766.

2^1399058 is an apocalyptic number.

1399058 is a deficient number, since it is larger than the sum of its proper divisors (699532).

1399058 is an equidigital number, since it uses as much as digits as its factorization.

1399058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 699531.

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

The square root of 1399058 is about 1182.8178219827. The cubic root of 1399058 is about 111.8437979837.

The spelling of 1399058 in words is "one million, three hundred ninety-nine thousand, fifty-eight".