38779497 has 12 divisors (see below), whose sum is σ = 56070144. Its totient is φ = 25827480.

The previous prime is 38779483. The next prime is 38779511. The reversal of 38779497 is 79497783.

38779497 is a `hidden beast` number, since 3 + 87 + 79 + 497 = 666.

It is an interprime number because it is at equal distance from previous prime (38779483) and next prime (38779511).

It is not a de Polignac number, because 38779497 - 2⁷ = 38779369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38779427) 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, 13672 + ... + 16262.

It is an arithmetic number, because the mean of its divisors is an integer number (4672512).

It is a vampire number, since it can be written as 4989 ⋅ 7773 (with its own digits).

Almost surely, 2^38779497 is an apocalyptic number.

It is an amenable number.

38779497 is a deficient number, since it is larger than the sum of its proper divisors (17290647).

38779497 is a wasteful number, since it uses less digits than its factorization.

38779497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4260 (or 4257 counting only the distinct ones).

The product of its digits is 2667168, while the sum is 54.

The square root of 38779497 is about 6227.3186043433. The cubic root of 38779497 is about 338.4808143676.

The spelling of 38779497 in words is "thirty-eight million, seven hundred seventy-nine thousand, four hundred ninety-seven".