663432014 has 16 divisors (see below), whose sum is σ = 1176530400. Its totient is φ = 274523424.

The previous prime is 663432013. The next prime is 663432019. The reversal of 663432014 is 410234366.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (663432013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 816629 + ... + 817440.

It is an arithmetic number, because the mean of its divisors is an integer number (73533150).

Almost surely, 2^663432014 is an apocalyptic number.

663432014 is a deficient number, since it is larger than the sum of its proper divisors (513098386).

663432014 is a wasteful number, since it uses less digits than its factorization.

663432014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1634107.

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 663432014 is about 25757.1740297728. The cubic root of 663432014 is about 872.1653088036.

The spelling of 663432014 in words is "six hundred sixty-three million, four hundred thirty-two thousand, fourteen".