47351863 has 4 divisors (see below), whose sum is σ = 50994328. Its totient is φ = 43709400.

The previous prime is 47351833. The next prime is 47351869. The reversal of 47351863 is 36815374.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36815374 = 2 ⋅18407687.

It is a cyclic number.

It is not a de Polignac number, because 47351863 - 2¹³ = 47343671 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 (47351869) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1821213 + ... + 1821238.

It is an arithmetic number, because the mean of its divisors is an integer number (12748582).

Almost surely, 2^47351863 is an apocalyptic number.

47351863 is a deficient number, since it is larger than the sum of its proper divisors (3642465).

47351863 is a wasteful number, since it uses less digits than its factorization.

47351863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3642464.

The product of its digits is 60480, while the sum is 37.

The square root of 47351863 is about 6881.2689963407. The cubic root of 47351863 is about 361.7809460925.

The spelling of 47351863 in words is "forty-seven million, three hundred fifty-one thousand, eight hundred sixty-three".