38162993 has 4 divisors (see below), whose sum is σ = 41632368. Its totient is φ = 34693620.

The previous prime is 38162989. The next prime is 38163017. The reversal of 38162993 is 39926183.

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 38162993 - 2² = 38162989 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38162993.

It is not an unprimeable number, because it can be changed into a prime (38162903) 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, 1734671 + ... + 1734692.

It is an arithmetic number, because the mean of its divisors is an integer number (10408092).

Almost surely, 2^38162993 is an apocalyptic number.

It is an amenable number.

38162993 is a deficient number, since it is larger than the sum of its proper divisors (3469375).

38162993 is a wasteful number, since it uses less digits than its factorization.

38162993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3469374.

The product of its digits is 69984, while the sum is 41.

The square root of 38162993 is about 6177.6203347244. The cubic root of 38162993 is about 336.6775379077.

The spelling of 38162993 in words is "thirty-eight million, one hundred sixty-two thousand, nine hundred ninety-three".