47290881 has 8 divisors (see below), whose sum is σ = 68786784. Its totient is φ = 28661120.

The previous prime is 47290879. The next prime is 47290891. The reversal of 47290881 is 18809274.

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 47290881 - 2¹ = 47290879 is a prime.

It is a super-2 number, since 2×47290881² = 4472854851512322, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (47290861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 716496 + ... + 716561.

It is an arithmetic number, because the mean of its divisors is an integer number (8598348).

Almost surely, 2^47290881 is an apocalyptic number.

It is an amenable number.

47290881 is a deficient number, since it is larger than the sum of its proper divisors (21495903).

47290881 is a wasteful number, since it uses less digits than its factorization.

47290881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1433071.

The product of its (nonzero) digits is 32256, while the sum is 39.

The square root of 47290881 is about 6876.8365546958. The cubic root of 47290881 is about 361.6255730904.

The spelling of 47290881 in words is "forty-seven million, two hundred ninety thousand, eight hundred eighty-one".