14663890 has 8 divisors (see below), whose sum is σ = 26395020. Its totient is φ = 5865552.

The previous prime is 14663863. The next prime is 14663927. The reversal of 14663890 is 9836641.

It can be written as a sum of positive squares in 2 ways, for example, as 14265729 + 398161 = 3777^2 + 631^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 733185 + ... + 733204.

Almost surely, 2^14663890 is an apocalyptic number.

14663890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

14663890 is a deficient number, since it is larger than the sum of its proper divisors (11731130).

14663890 is a wasteful number, since it uses less digits than its factorization.

14663890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1466396.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 14663890 is about 3829.3458971474. The cubic root of 14663890 is about 244.7652339489.

It can be divided in two parts, 1466 and 3890, that added together give a triangular number (5356 = T₁₀₃).

The spelling of 14663890 in words is "fourteen million, six hundred sixty-three thousand, eight hundred ninety".