47863021 has 8 divisors (see below), whose sum is σ = 49681080. Its totient is φ = 46056192.

The previous prime is 47863003. The next prime is 47863037. The reversal of 47863021 is 12036874.

It can be written as a sum of positive squares in 4 ways, for example, as 114921 + 47748100 = 339^2 + 6910^2 .

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 47863021 - 2¹¹ = 47860973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47863091) 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, 6441 + ... + 11713.

It is an arithmetic number, because the mean of its divisors is an integer number (6210135).

Almost surely, 2^47863021 is an apocalyptic number.

It is an amenable number.

47863021 is a deficient number, since it is larger than the sum of its proper divisors (1818059).

47863021 is a wasteful number, since it uses less digits than its factorization.

47863021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5615.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 47863021 is about 6918.3105596670. The cubic root of 47863021 is about 363.0780845259.

Adding to 47863021 its reverse (12036874), we get a palindrome (59899895).

The spelling of 47863021 in words is "forty-seven million, eight hundred sixty-three thousand, twenty-one".