38797973 has 2 divisors, whose sum is σ = 38797974. Its totient is φ = 38797972.

The previous prime is 38797949. The next prime is 38797991. The reversal of 38797973 is 37979783.

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., 35022724 + 3775249 = 5918^2 + 1943^2 .

It is a cyclic number.

It is not a de Polignac number, because 38797973 - 2⁶ = 38797909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38797903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19398986 + 19398987.

It is an arithmetic number, because the mean of its divisors is an integer number (19398987).

Almost surely, 2^38797973 is an apocalyptic number.

It is an amenable number.

38797973 is a deficient number, since it is larger than the sum of its proper divisors (1).

38797973 is an equidigital number, since it uses as much as digits as its factorization.

38797973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2000376, while the sum is 53.

The square root of 38797973 is about 6228.8018912147. The cubic root of 38797973 is about 338.5345607980.

The spelling of 38797973 in words is "thirty-eight million, seven hundred ninety-seven thousand, nine hundred seventy-three".