39896047 has 2 divisors, whose sum is σ = 39896048. Its totient is φ = 39896046.

The previous prime is 39896041. The next prime is 39896069. The reversal of 39896047 is 74069893.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39896047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 39895988 and 39896006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39896041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19948023 + 19948024.

It is an arithmetic number, because the mean of its divisors is an integer number (19948024).

Almost surely, 2^39896047 is an apocalyptic number.

39896047 is a deficient number, since it is larger than the sum of its proper divisors (1).

39896047 is an equidigital number, since it uses as much as digits as its factorization.

39896047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 39896047 is about 6316.3317677272. The cubic root of 39896047 is about 341.6986704373.

The spelling of 39896047 in words is "thirty-nine million, eight hundred ninety-six thousand, forty-seven".