46478189 has 2 divisors, whose sum is σ = 46478190. Its totient is φ = 46478188.

The previous prime is 46478183. The next prime is 46478197. The reversal of 46478189 is 98187464.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45333289 + 1144900 = 6733^2 + 1070^2 .

It is a cyclic number.

It is not a de Polignac number, because 46478189 - 2¹² = 46474093 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (46478183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23239094 + 23239095.

It is an arithmetic number, because the mean of its divisors is an integer number (23239095).

Almost surely, 2^46478189 is an apocalyptic number.

It is an amenable number.

46478189 is a deficient number, since it is larger than the sum of its proper divisors (1).

46478189 is an equidigital number, since it uses as much as digits as its factorization.

46478189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 387072, while the sum is 47.

The square root of 46478189 is about 6817.4914008013. The cubic root of 46478189 is about 359.5420849664.

The spelling of 46478189 in words is "forty-six million, four hundred seventy-eight thousand, one hundred eighty-nine".