46658721 has 4 divisors (see below), whose sum is σ = 62211632. Its totient is φ = 31105812.

The previous prime is 46658719. The next prime is 46658749. The reversal of 46658721 is 12785664.

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 not a de Polignac number, because 46658721 - 2¹ = 46658719 is a prime.

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 46658721.

It is not an unprimeable number, because it can be changed into a prime (46658021) 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, 7776451 + ... + 7776456.

It is an arithmetic number, because the mean of its divisors is an integer number (15552908).

Almost surely, 2^46658721 is an apocalyptic number.

It is an amenable number.

46658721 is a deficient number, since it is larger than the sum of its proper divisors (15552911).

46658721 is a wasteful number, since it uses less digits than its factorization.

46658721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15552910.

The product of its digits is 80640, while the sum is 39.

The square root of 46658721 is about 6830.7189226318. The cubic root of 46658721 is about 360.0069983207.

The spelling of 46658721 in words is "forty-six million, six hundred fifty-eight thousand, seven hundred twenty-one".