46718821 has 4 divisors (see below), whose sum is σ = 46980000. Its totient is φ = 46457644.

The previous prime is 46718809. The next prime is 46718849. The reversal of 46718821 is 12881764.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 46718821 - 2¹¹ = 46716773 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 (46718851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130321 + ... + 130678.

It is an arithmetic number, because the mean of its divisors is an integer number (11745000).

Almost surely, 2^46718821 is an apocalyptic number.

It is an amenable number.

46718821 is a deficient number, since it is larger than the sum of its proper divisors (261179).

46718821 is a wasteful number, since it uses less digits than its factorization.

46718821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261178.

The product of its digits is 21504, while the sum is 37.

The square root of 46718821 is about 6835.1167510146. The cubic root of 46718821 is about 360.1615041808.

The spelling of 46718821 in words is "forty-six million, seven hundred eighteen thousand, eight hundred twenty-one".