47623281 has 8 divisors (see below), whose sum is σ = 63902784. Its totient is φ = 31546320.

The previous prime is 47623201. The next prime is 47623283. The reversal of 47623281 is 18232674.

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

It is not a de Polignac number, because 47623281 - 2⁷ = 47623153 is a prime.

It is a super-2 number, since 2×47623281² = 4535953786409922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (47623283) 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, 50085 + ... + 51026.

It is an arithmetic number, because the mean of its divisors is an integer number (7987848).

Almost surely, 2^47623281 is an apocalyptic number.

It is an amenable number.

47623281 is a deficient number, since it is larger than the sum of its proper divisors (16279503).

47623281 is a wasteful number, since it uses less digits than its factorization.

47623281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101271.

The product of its digits is 16128, while the sum is 33.

The square root of 47623281 is about 6900.9623241980. The cubic root of 47623281 is about 362.4708650385.

The spelling of 47623281 in words is "forty-seven million, six hundred twenty-three thousand, two hundred eighty-one".