38207997 has 16 divisors (see below), whose sum is σ = 57168960. Its totient is φ = 25218000.

The previous prime is 38207989. The next prime is 38208007. The reversal of 38207997 is 79970283.

38207997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 38207997 - 2³ = 38207989 is a prime.

It is a super-3 number, since 3×38207997³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38207927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4279 + ... + 9732.

It is an arithmetic number, because the mean of its divisors is an integer number (3573060).

Almost surely, 2^38207997 is an apocalyptic number.

It is an amenable number.

38207997 is a deficient number, since it is larger than the sum of its proper divisors (18960963).

38207997 is a wasteful number, since it uses less digits than its factorization.

38207997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14121 (or 14115 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 45.

The square root of 38207997 is about 6181.2617643973. The cubic root of 38207997 is about 336.8098291027.

It can be divided in two parts, 38207 and 997, that added together give a square (39204 = 198²).

The spelling of 38207997 in words is "thirty-eight million, two hundred seven thousand, nine hundred ninety-seven".