16063994 has 8 divisors (see below), whose sum is σ = 24747348. Its totient is φ = 7814880.

The previous prime is 16063973. The next prime is 16064003. The reversal of 16063994 is 49936061.

It can be written as a sum of positive squares in 2 ways, for example, as 13053769 + 3010225 = 3613^2 + 1735^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108467 + ... + 108614.

Almost surely, 2^16063994 is an apocalyptic number.

16063994 is a deficient number, since it is larger than the sum of its proper divisors (8683354).

16063994 is a wasteful number, since it uses less digits than its factorization.

16063994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217120.

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 16063994 is about 4007.9912674556. The cubic root of 16063994 is about 252.3197105322.

The spelling of 16063994 in words is "sixteen million, sixty-three thousand, nine hundred ninety-four".