38735861 has 4 divisors (see below), whose sum is σ = 38794092. Its totient is φ = 38677632.

The previous prime is 38735797. The next prime is 38735863. The reversal of 38735861 is 16853783.

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 8814961 + 29920900 = 2969^2 + 5470^2 .

It is a cyclic number.

It is not a de Polignac number, because 38735861 - 2⁶ = 38735797 is a prime.

It is a super-2 number, since 2×38735861² = 3000933854822642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38735863) 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, 28106 + ... + 29451.

It is an arithmetic number, because the mean of its divisors is an integer number (9698523).

Almost surely, 2^38735861 is an apocalyptic number.

It is an amenable number.

38735861 is a deficient number, since it is larger than the sum of its proper divisors (58231).

38735861 is an equidigital number, since it uses as much as digits as its factorization.

38735861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58230.

The product of its digits is 120960, while the sum is 41.

The square root of 38735861 is about 6223.8140235711. The cubic root of 38735861 is about 338.3538100371.

The spelling of 38735861 in words is "thirty-eight million, seven hundred thirty-five thousand, eight hundred sixty-one".