46644663 has 16 divisors (see below), whose sum is σ = 67980416. Its totient is φ = 28274400.

The previous prime is 46644649. The next prime is 46644671. The reversal of 46644663 is 36644664.

It is not a de Polignac number, because 46644663 - 2⁸ = 46644407 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (46644613) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6313 + ... + 11538.

It is an arithmetic number, because the mean of its divisors is an integer number (4248776).

Almost surely, 2^46644663 is an apocalyptic number.

46644663 is a deficient number, since it is larger than the sum of its proper divisors (21335753).

46644663 is a wasteful number, since it uses less digits than its factorization.

46644663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17934.

The product of its digits is 248832, while the sum is 39.

The square root of 46644663 is about 6829.6898172611. The cubic root of 46644663 is about 359.9708386873.

Subtracting from 46644663 its reverse (36644664), we obtain a palindrome (9999999).

The spelling of 46644663 in words is "forty-six million, six hundred forty-four thousand, six hundred sixty-three".