46615221 has 12 divisors (see below), whose sum is σ = 67412748. Its totient is φ = 31040064.

The previous prime is 46615213. The next prime is 46615271. The reversal of 46615221 is 12251664.

46615221 is a `hidden beast` number, since 46 + 615 + 2 + 2 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 239121 + 46376100 = 489^2 + 6810^2 .

It is not a de Polignac number, because 46615221 - 2³ = 46615213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (46615271) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6561 + ... + 11673.

It is an arithmetic number, because the mean of its divisors is an integer number (5617729).

Almost surely, 2^46615221 is an apocalyptic number.

It is an amenable number.

46615221 is a deficient number, since it is larger than the sum of its proper divisors (20797527).

46615221 is a wasteful number, since it uses less digits than its factorization.

46615221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6132 (or 6129 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 46615221 is about 6827.5340350671. The cubic root of 46615221 is about 359.8950851684.

Adding to 46615221 its reverse (12251664), we get a palindrome (58866885).

The spelling of 46615221 in words is "forty-six million, six hundred fifteen thousand, two hundred twenty-one".