38641923 has 6 divisors (see below), whose sum is σ = 55816124. Its totient is φ = 25761276.

The previous prime is 38641919. The next prime is 38641927. The reversal of 38641923 is 32914683.

38641923 is a `hidden beast` number, since 3 + 8 + 641 + 9 + 2 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (38641919) and next prime (38641927).

It is not a de Polignac number, because 38641923 - 2² = 38641919 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38641927) 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, 2146765 + ... + 2146782.

Almost surely, 2^38641923 is an apocalyptic number.

38641923 is a deficient number, since it is larger than the sum of its proper divisors (17174201).

38641923 is a wasteful number, since it uses less digits than its factorization.

38641923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4293553 (or 4293550 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 38641923 is about 6216.2627840206. The cubic root of 38641923 is about 338.0800756790.

The spelling of 38641923 in words is "thirty-eight million, six hundred forty-one thousand, nine hundred twenty-three".