46646819 has 4 divisors (see below), whose sum is σ = 48255360. Its totient is φ = 45038280.

The previous prime is 46646813. The next prime is 46646849. The reversal of 46646819 is 91864664.

46646819 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 46646819 - 2²⁰ = 45598243 is a prime.

It is a super-2 number, since 2×46646819² = 4351851445637522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 46646819.

It is not an unprimeable number, because it can be changed into a prime (46646813) by changing a digit.

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, 804227 + ... + 804284.

It is an arithmetic number, because the mean of its divisors is an integer number (12063840).

Almost surely, 2^46646819 is an apocalyptic number.

46646819 is a deficient number, since it is larger than the sum of its proper divisors (1608541).

46646819 is a wasteful number, since it uses less digits than its factorization.

46646819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1608540.

The product of its digits is 248832, while the sum is 44.

The square root of 46646819 is about 6829.8476556948. The cubic root of 46646819 is about 359.9763847678.

The spelling of 46646819 in words is "forty-six million, six hundred forty-six thousand, eight hundred nineteen".