38162913 has 4 divisors (see below), whose sum is σ = 50883888. Its totient is φ = 25441940.

The previous prime is 38162903. The next prime is 38162921. The reversal of 38162913 is 31926183.

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 a cyclic number.

It is not a de Polignac number, because 38162913 - 2⁴ = 38162897 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (38162903) 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, 6360483 + ... + 6360488.

It is an arithmetic number, because the mean of its divisors is an integer number (12720972).

Almost surely, 2^38162913 is an apocalyptic number.

It is an amenable number.

38162913 is a deficient number, since it is larger than the sum of its proper divisors (12720975).

38162913 is a wasteful number, since it uses less digits than its factorization.

38162913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12720974.

The product of its digits is 7776, while the sum is 33.

The square root of 38162913 is about 6177.6138597358. The cubic root of 38162913 is about 336.6773026517.

The spelling of 38162913 in words is "thirty-eight million, one hundred sixty-two thousand, nine hundred thirteen".