47461418 has 4 divisors (see below), whose sum is σ = 71192130. Its totient is φ = 23730708.

The previous prime is 47461409. The next prime is 47461423. The reversal of 47461418 is 81416474.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81416474 = 2 ⋅40708237.

It can be written as a sum of positive squares in only one way, i.e., 44662489 + 2798929 = 6683^2 + 1673^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11865353 + ... + 11865356.

Almost surely, 2^47461418 is an apocalyptic number.

47461418 is a deficient number, since it is larger than the sum of its proper divisors (23730712).

47461418 is a wasteful number, since it uses less digits than its factorization.

47461418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23730711.

The product of its digits is 21504, while the sum is 35.

The square root of 47461418 is about 6889.2247749656. The cubic root of 47461418 is about 362.0597410637.

The spelling of 47461418 in words is "forty-seven million, four hundred sixty-one thousand, four hundred eighteen".