10506439 has 4 divisors (see below), whose sum is σ = 10868760. Its totient is φ = 10144120.

The previous prime is 10506421. The next prime is 10506451. The reversal of 10506439 is 93460501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93460501 = 9103 ⋅10267.

It is a cyclic number.

It is not a de Polignac number, because 10506439 - 2⁵ = 10506407 is a prime.

It is a super-2 number, since 2×10506439² = 220770520921442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10506479) 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, 181117 + ... + 181174.

It is an arithmetic number, because the mean of its divisors is an integer number (2717190).

Almost surely, 2^10506439 is an apocalyptic number.

10506439 is a deficient number, since it is larger than the sum of its proper divisors (362321).

10506439 is an equidigital number, since it uses as much as digits as its factorization.

10506439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362320.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 10506439 is about 3241.3637561989. The cubic root of 10506439 is about 219.0207093140.

The spelling of 10506439 in words is "ten million, five hundred six thousand, four hundred thirty-nine".