39707069 has 2 divisors, whose sum is σ = 39707070. Its totient is φ = 39707068.

The previous prime is 39707051. The next prime is 39707071. The reversal of 39707069 is 96070793.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29702500 + 10004569 = 5450^2 + 3163^2 .

It is a cyclic number.

It is not a de Polignac number, because 39707069 - 2¹⁶ = 39641533 is a prime.

It is a super-2 number, since 2×39707069² = 3153302657141522, which contains 22 as substring.

Together with 39707071, 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 (39707099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19853534 + 19853535.

It is an arithmetic number, because the mean of its divisors is an integer number (19853535).

Almost surely, 2^39707069 is an apocalyptic number.

It is an amenable number.

39707069 is a deficient number, since it is larger than the sum of its proper divisors (1).

39707069 is an equidigital number, since it uses as much as digits as its factorization.

39707069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 71442, while the sum is 41.

The square root of 39707069 is about 6301.3545369230. The cubic root of 39707069 is about 341.1583014718.

The spelling of 39707069 in words is "thirty-nine million, seven hundred seven thousand, sixty-nine".