6439058 has 4 divisors (see below), whose sum is σ = 9658590. Its totient is φ = 3219528.

The previous prime is 6439051. The next prime is 6439063. The reversal of 6439058 is 8509346.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 4635409 + 1803649 = 2153^2 + 1343^2 .

It is a super-2 number, since 2×6439058² = 82922935854728, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6439051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1609763 + ... + 1609766.

Almost surely, 2^6439058 is an apocalyptic number.

6439058 is a deficient number, since it is larger than the sum of its proper divisors (3219532).

6439058 is a wasteful number, since it uses less digits than its factorization.

6439058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3219531.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 6439058 is about 2537.5299013017. The cubic root of 6439058 is about 186.0404775667.

The spelling of 6439058 in words is "six million, four hundred thirty-nine thousand, fifty-eight".