14648639 has 4 divisors (see below), whose sum is σ = 15419640. Its totient is φ = 13877640.

The previous prime is 14648629. The next prime is 14648663. The reversal of 14648639 is 93684641.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93684641 = 1009 ⋅92849.

It is a cyclic number.

It is not a de Polignac number, because 14648639 - 2¹⁶ = 14583103 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 14648596 and 14648605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14648609) 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, 385472 + ... + 385509.

It is an arithmetic number, because the mean of its divisors is an integer number (3854910).

Almost surely, 2^14648639 is an apocalyptic number.

14648639 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

14648639 is a deficient number, since it is larger than the sum of its proper divisors (771001).

14648639 is an equidigital number, since it uses as much as digits as its factorization.

14648639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 771000.

The product of its digits is 124416, while the sum is 41.

The square root of 14648639 is about 3827.3540468580. The cubic root of 14648639 is about 244.6803494820.

The spelling of 14648639 in words is "fourteen million, six hundred forty-eight thousand, six hundred thirty-nine".