38413997 has 2 divisors, whose sum is σ = 38413998. Its totient is φ = 38413996.

The previous prime is 38413967. The next prime is 38414003. The reversal of 38413997 is 79931483.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37319881 + 1094116 = 6109^2 + 1046^2 .

It is a cyclic number.

It is not a de Polignac number, because 38413997 - 2⁸ = 38413741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38413927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19206998 + 19206999.

It is an arithmetic number, because the mean of its divisors is an integer number (19206999).

Almost surely, 2^38413997 is an apocalyptic number.

It is an amenable number.

38413997 is a deficient number, since it is larger than the sum of its proper divisors (1).

38413997 is an equidigital number, since it uses as much as digits as its factorization.

38413997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 163296, while the sum is 44.

The square root of 38413997 is about 6197.9026291158. The cubic root of 38413997 is about 337.4140525544.

The spelling of 38413997 in words is "thirty-eight million, four hundred thirteen thousand, nine hundred ninety-seven".