39677699 has 2 divisors, whose sum is σ = 39677700. Its totient is φ = 39677698.

The previous prime is 39677663. The next prime is 39677707. The reversal of 39677699 is 99677693.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 39677699 - 2¹² = 39673603 is a prime.

It is not a weakly prime, because it can be changed into another prime (39677639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19838849 + 19838850.

It is an arithmetic number, because the mean of its divisors is an integer number (19838850).

Almost surely, 2^39677699 is an apocalyptic number.

39677699 is a deficient number, since it is larger than the sum of its proper divisors (1).

39677699 is an equidigital number, since it uses as much as digits as its factorization.

39677699 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3857868, while the sum is 56.

The square root of 39677699 is about 6299.0236545039. The cubic root of 39677699 is about 341.0741662365.

The spelling of 39677699 in words is "thirty-nine million, six hundred seventy-seven thousand, six hundred ninety-nine".