10423639 has 4 divisors (see below), whose sum is σ = 10486224. Its totient is φ = 10361056.

The previous prime is 10423631. The next prime is 10423643. The reversal of 10423639 is 93632401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93632401 = 127 ⋅737263.

It is a cyclic number.

It is not a de Polignac number, because 10423639 - 2³ = 10423631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10423631) 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, 31042 + ... + 31375.

It is an arithmetic number, because the mean of its divisors is an integer number (2621556).

Almost surely, 2^10423639 is an apocalyptic number.

10423639 is a deficient number, since it is larger than the sum of its proper divisors (62585).

10423639 is an equidigital number, since it uses as much as digits as its factorization.

10423639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62584.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 10423639 is about 3228.5660903875. The cubic root of 10423639 is about 218.4438324699.

The spelling of 10423639 in words is "ten million, four hundred twenty-three thousand, six hundred thirty-nine".