38965851 has 6 divisors (see below), whose sum is σ = 56284020. Its totient is φ = 25977228.

The previous prime is 38965831. The next prime is 38965873. The reversal of 38965851 is 15856983.

It is not a de Polignac number, because 38965851 - 2¹⁷ = 38834779 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 38965797 and 38965806.

It is not an unprimeable number, because it can be changed into a prime (38965811) 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, 2164761 + ... + 2164778.

It is an arithmetic number, because the mean of its divisors is an integer number (9380670).

Almost surely, 2^38965851 is an apocalyptic number.

38965851 is a deficient number, since it is larger than the sum of its proper divisors (17318169).

38965851 is a wasteful number, since it uses less digits than its factorization.

38965851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4329545 (or 4329542 counting only the distinct ones).

The product of its digits is 259200, while the sum is 45.

The square root of 38965851 is about 6242.2632914673. The cubic root of 38965851 is about 339.0221355008.

The spelling of 38965851 in words is "thirty-eight million, nine hundred sixty-five thousand, eight hundred fifty-one".