47213855 has 8 divisors (see below), whose sum is σ = 61014912. Its totient is φ = 34865568.

The previous prime is 47213849. The next prime is 47213869. The reversal of 47213855 is 55831274.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 47213855 - 2⁴ = 47213839 is a prime.

It is a super-2 number, since 2×47213855² = 4458296207922050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 363119 + ... + 363248.

It is an arithmetic number, because the mean of its divisors is an integer number (7626864).

Almost surely, 2^47213855 is an apocalyptic number.

47213855 is a deficient number, since it is larger than the sum of its proper divisors (13801057).

47213855 is a wasteful number, since it uses less digits than its factorization.

47213855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 726385.

The product of its digits is 33600, while the sum is 35.

The square root of 47213855 is about 6871.2338775507. The cubic root of 47213855 is about 361.4291313564.

The spelling of 47213855 in words is "forty-seven million, two hundred thirteen thousand, eight hundred fifty-five".