39387349 has 2 divisors, whose sum is σ = 39387350. Its totient is φ = 39387348.

The previous prime is 39387343. The next prime is 39387367. The reversal of 39387349 is 94378393.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32285124 + 7102225 = 5682^2 + 2665^2 .

It is a cyclic number.

It is not a de Polignac number, because 39387349 - 2⁷ = 39387221 is a prime.

It is a super-2 number, since 2×39387349² = 3102726522495602, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 39387299 and 39387308.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39387343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19693674 + 19693675.

It is an arithmetic number, because the mean of its divisors is an integer number (19693675).

Almost surely, 2^39387349 is an apocalyptic number.

It is an amenable number.

39387349 is a deficient number, since it is larger than the sum of its proper divisors (1).

39387349 is an equidigital number, since it uses as much as digits as its factorization.

39387349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 489888, while the sum is 46.

The square root of 39387349 is about 6275.9341137396. The cubic root of 39387349 is about 340.2401676817.

The spelling of 39387349 in words is "thirty-nine million, three hundred eighty-seven thousand, three hundred forty-nine".