38475865 has 4 divisors (see below), whose sum is σ = 46171044. Its totient is φ = 30780688.

The previous prime is 38475863. The next prime is 38475919. The reversal of 38475865 is 56857483.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8838729 + 29637136 = 2973^2 + 5444^2 .

It is a cyclic number.

It is not a de Polignac number, because 38475865 - 2¹ = 38475863 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38475863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3847582 + ... + 3847591.

It is an arithmetic number, because the mean of its divisors is an integer number (11542761).

Almost surely, 2^38475865 is an apocalyptic number.

It is an amenable number.

38475865 is a deficient number, since it is larger than the sum of its proper divisors (7695179).

38475865 is an equidigital number, since it uses as much as digits as its factorization.

38475865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7695178.

The product of its digits is 806400, while the sum is 46.

The square root of 38475865 is about 6202.8916643772. The cubic root of 38475865 is about 337.5950971161.

It can be divided in two parts, 38475 and 865, that added together give a triangular number (39340 = T₂₈₀).

The spelling of 38475865 in words is "thirty-eight million, four hundred seventy-five thousand, eight hundred sixty-five".