39675749 has 2 divisors, whose sum is σ = 39675750. Its totient is φ = 39675748.

The previous prime is 39675737. The next prime is 39675761. The reversal of 39675749 is 94757693.

It is a balanced prime because it is at equal distance from previous prime (39675737) and next prime (39675761).

It can be written as a sum of positive squares in only one way, i.e., 38353249 + 1322500 = 6193^2 + 1150^2 .

It is a cyclic number.

It is not a de Polignac number, because 39675749 - 2⁴ = 39675733 is a prime.

It is a super-2 number, since 2×39675749² = 3148330117422002, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 39675697 and 39675706.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39675709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19837874 + 19837875.

It is an arithmetic number, because the mean of its divisors is an integer number (19837875).

Almost surely, 2^39675749 is an apocalyptic number.

It is an amenable number.

39675749 is a deficient number, since it is larger than the sum of its proper divisors (1).

39675749 is an equidigital number, since it uses as much as digits as its factorization.

39675749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1428840, while the sum is 50.

The square root of 39675749 is about 6298.8688667093. The cubic root of 39675749 is about 341.0685786686.

The spelling of 39675749 in words is "thirty-nine million, six hundred seventy-five thousand, seven hundred forty-nine".