39073997 has 2 divisors, whose sum is σ = 39073998. Its totient is φ = 39073996.

The previous prime is 39073921. The next prime is 39073999. The reversal of 39073997 is 79937093.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31516996 + 7557001 = 5614^2 + 2749^2 .

It is a cyclic number.

It is not a de Polignac number, because 39073997 - 2¹⁰ = 39072973 is a prime.

Together with 39073999, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39073999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19536998 + 19536999.

It is an arithmetic number, because the mean of its divisors is an integer number (19536999).

Almost surely, 2^39073997 is an apocalyptic number.

It is an amenable number.

39073997 is a deficient number, since it is larger than the sum of its proper divisors (1).

39073997 is an equidigital number, since it uses as much as digits as its factorization.

39073997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 321489, while the sum is 47.

The square root of 39073997 is about 6250.9196923333. The cubic root of 39073997 is about 339.3354869790.

The spelling of 39073997 in words is "thirty-nine million, seventy-three thousand, nine hundred ninety-seven".