38478847 has 6 divisors (see below), whose sum is σ = 42295064. Its totient is φ = 34980660.

The previous prime is 38478829. The next prime is 38478859. The reversal of 38478847 is 74887483.

It is a happy number.

It is not a de Polignac number, because 38478847 - 2¹⁹ = 37954559 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38478847.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38478827) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 158883 + ... + 159124.

Almost surely, 2^38478847 is an apocalyptic number.

38478847 is a deficient number, since it is larger than the sum of its proper divisors (3816217).

38478847 is a wasteful number, since it uses less digits than its factorization.

38478847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318029 (or 318018 counting only the distinct ones).

The product of its digits is 1204224, while the sum is 49.

The square root of 38478847 is about 6203.1320314822. The cubic root of 38478847 is about 337.6038184498.

The spelling of 38478847 in words is "thirty-eight million, four hundred seventy-eight thousand, eight hundred forty-seven".