46787721 has 16 divisors (see below), whose sum is σ = 64325184. Its totient is φ = 30227904.

The previous prime is 46787693. The next prime is 46787731. The reversal of 46787721 is 12778764.

46787721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 46787721 - 2¹⁰ = 46786697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (46787731) 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 15 ways as a sum of consecutive naturals, for example, 33391 + ... + 34763.

It is an arithmetic number, because the mean of its divisors is an integer number (4020324).

Almost surely, 2^46787721 is an apocalyptic number.

It is an amenable number.

46787721 is a deficient number, since it is larger than the sum of its proper divisors (17537463).

46787721 is a wasteful number, since it uses less digits than its factorization.

46787721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1720.

The product of its digits is 131712, while the sum is 42.

The square root of 46787721 is about 6840.1550421025. The cubic root of 46787721 is about 360.3384702524.

It can be divided in two parts, 467 and 87721, that added together give a palindrome (88188).

The spelling of 46787721 in words is "forty-six million, seven hundred eighty-seven thousand, seven hundred twenty-one".