39690463 has 2 divisors, whose sum is σ = 39690464. Its totient is φ = 39690462.

The previous prime is 39690457. The next prime is 39690493. The reversal of 39690463 is 36409693.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 39690463 - 2¹³ = 39682271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39690493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19845231 + 19845232.

It is an arithmetic number, because the mean of its divisors is an integer number (19845232).

Almost surely, 2^39690463 is an apocalyptic number.

39690463 is a deficient number, since it is larger than the sum of its proper divisors (1).

39690463 is an equidigital number, since it uses as much as digits as its factorization.

39690463 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 104976, while the sum is 40.

The square root of 39690463 is about 6300.0367459246. The cubic root of 39690463 is about 341.1107359304.

The spelling of 39690463 in words is "thirty-nine million, six hundred ninety thousand, four hundred sixty-three".