38709967 has 4 divisors (see below), whose sum is σ = 39093336. Its totient is φ = 38326600.

The previous prime is 38709953. The next prime is 38709991. The reversal of 38709967 is 76990783.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38709967 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 38709967.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38709947) 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, 191533 + ... + 191734.

It is an arithmetic number, because the mean of its divisors is an integer number (9773334).

Almost surely, 2^38709967 is an apocalyptic number.

38709967 is a deficient number, since it is larger than the sum of its proper divisors (383369).

38709967 is a wasteful number, since it uses less digits than its factorization.

38709967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383368.

The product of its (nonzero) digits is 571536, while the sum is 49.

The square root of 38709967 is about 6221.7334401274. The cubic root of 38709967 is about 338.2783994115.

The spelling of 38709967 in words is "thirty-eight million, seven hundred nine thousand, nine hundred sixty-seven".