38973861 has 12 divisors (see below), whose sum is σ = 56843488. Its totient is φ = 25729704.

The previous prime is 38973853. The next prime is 38973863. The reversal of 38973861 is 16837983.

It is a happy number.

It is not a de Polignac number, because 38973861 - 2³ = 38973853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38973863) 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, 20095 + ... + 21948.

Almost surely, 2^38973861 is an apocalyptic number.

It is an amenable number.

38973861 is a deficient number, since it is larger than the sum of its proper divisors (17869627).

38973861 is a wasteful number, since it uses less digits than its factorization.

38973861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42152 (or 42149 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 38973861 is about 6242.9048527108. The cubic root of 38973861 is about 339.0453642270.

The spelling of 38973861 in words is "thirty-eight million, nine hundred seventy-three thousand, eight hundred sixty-one".