47218354 has 4 divisors (see below), whose sum is σ = 70827534. Its totient is φ = 23609176.

The previous prime is 47218321. The next prime is 47218357. The reversal of 47218354 is 45381274.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 33698025 + 13520329 = 5805^2 + 3677^2 .

It is not an unprimeable number, because it can be changed into a prime (47218357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11804587 + ... + 11804590.

Almost surely, 2^47218354 is an apocalyptic number.

47218354 is a deficient number, since it is larger than the sum of its proper divisors (23609180).

47218354 is a wasteful number, since it uses less digits than its factorization.

47218354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23609179.

The product of its digits is 26880, while the sum is 34.

The square root of 47218354 is about 6871.5612490903. The cubic root of 47218354 is about 361.4406111647.

The spelling of 47218354 in words is "forty-seven million, two hundred eighteen thousand, three hundred fifty-four".