38508861 has 4 divisors (see below), whose sum is σ = 51345152. Its totient is φ = 25672572.

The previous prime is 38508809. The next prime is 38508863. The reversal of 38508861 is 16880583.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 38508861 - 2⁶ = 38508797 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38508863) 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, 6418141 + ... + 6418146.

It is an arithmetic number, because the mean of its divisors is an integer number (12836288).

Almost surely, 2^38508861 is an apocalyptic number.

It is an amenable number.

38508861 is a deficient number, since it is larger than the sum of its proper divisors (12836291).

38508861 is a wasteful number, since it uses less digits than its factorization.

38508861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12836290.

The product of its (nonzero) digits is 46080, while the sum is 39.

The square root of 38508861 is about 6205.5508216435. The cubic root of 38508861 is about 337.6915740900.

The spelling of 38508861 in words is "thirty-eight million, five hundred eight thousand, eight hundred sixty-one".