10508389 has 4 divisors (see below), whose sum is σ = 10520224. Its totient is φ = 10496556.

The previous prime is 10508359. The next prime is 10508461. The reversal of 10508389 is 98380501.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 98380501 = 2707 ⋅36343.

It is a cyclic number.

It is not a de Polignac number, because 10508389 - 2⁵ = 10508357 is a prime.

It is a super-2 number, since 2×10508389² = 220852478750642, 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 (10508339) 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, 4467 + ... + 6400.

It is an arithmetic number, because the mean of its divisors is an integer number (2630056).

Almost surely, 2^10508389 is an apocalyptic number.

It is an amenable number.

10508389 is a deficient number, since it is larger than the sum of its proper divisors (11835).

10508389 is an equidigital number, since it uses as much as digits as its factorization.

10508389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11834.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 10508389 is about 3241.6645415589. The cubic root of 10508389 is about 219.0342585912.

The spelling of 10508389 in words is "ten million, five hundred eight thousand, three hundred eighty-nine".