38471643 has 12 divisors (see below), whose sum is σ = 63508848. Its totient is φ = 21983760.

The previous prime is 38471639. The next prime is 38471647. The reversal of 38471643 is 34617483.

38471643 is a `hidden beast` number, since 3 + 8 + 4 + 7 + 1 + 643 = 666.

It is an interprime number because it is at equal distance from previous prime (38471639) and next prime (38471647).

It is not a de Polignac number, because 38471643 - 2² = 38471639 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 38471598 and 38471607.

It is not an unprimeable number, because it can be changed into a prime (38471647) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 305268 + ... + 305393.

It is an arithmetic number, because the mean of its divisors is an integer number (5292404).

Almost surely, 2^38471643 is an apocalyptic number.

38471643 is a deficient number, since it is larger than the sum of its proper divisors (25037205).

38471643 is a wasteful number, since it uses less digits than its factorization.

38471643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610674 (or 610671 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 38471643 is about 6202.5513298964. The cubic root of 38471643 is about 337.5827484343.

It can be divided in two parts, 384 and 71643, that added together give a palindrome (72027).

The spelling of 38471643 in words is "thirty-eight million, four hundred seventy-one thousand, six hundred forty-three".