63404123 has 8 divisors (see below), whose sum is σ = 66313728. Its totient is φ = 60507304.

The previous prime is 63404093. The next prime is 63404129. The reversal of 63404123 is 32140436.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 63404123 - 2¹² = 63400027 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63404129) 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, 7790 + ... + 13692.

It is an arithmetic number, because the mean of its divisors is an integer number (8289216).

Almost surely, 2^63404123 is an apocalyptic number.

63404123 is a deficient number, since it is larger than the sum of its proper divisors (2909605).

63404123 is a wasteful number, since it uses less digits than its factorization.

63404123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6393.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 63404123 is about 7962.6705947188. The cubic root of 63404123 is about 398.7547167807.

Adding to 63404123 its reverse (32140436), we get a palindrome (95544559).

The spelling of 63404123 in words is "sixty-three million, four hundred four thousand, one hundred twenty-three".