46678021 has 8 divisors (see below), whose sum is σ = 50369144. Its totient is φ = 43001280.

The previous prime is 46678013. The next prime is 46678031. The reversal of 46678021 is 12087664.

It can be written as a sum of positive squares in 4 ways, for example, as 1600225 + 45077796 = 1265^2 + 6714^2 .

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 46678021 - 2³ = 46678013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (46678031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3715 + ... + 10351.

It is an arithmetic number, because the mean of its divisors is an integer number (6296143).

Almost surely, 2^46678021 is an apocalyptic number.

It is an amenable number.

46678021 is a deficient number, since it is larger than the sum of its proper divisors (3691123).

46678021 is a wasteful number, since it uses less digits than its factorization.

46678021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7191.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 46678021 is about 6832.1315122003. The cubic root of 46678021 is about 360.0566294660.

It can be divided in two parts, 466 and 78021, that added together give a palindrome (78487).

The spelling of 46678021 in words is "forty-six million, six hundred seventy-eight thousand, twenty-one".