40086247 has 2 divisors, whose sum is σ = 40086248. Its totient is φ = 40086246.

The previous prime is 40086239. The next prime is 40086269. The reversal of 40086247 is 74268004.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40086247 - 2³ = 40086239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40081247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20043123 + 20043124.

It is an arithmetic number, because the mean of its divisors is an integer number (20043124).

Almost surely, 2^40086247 is an apocalyptic number.

40086247 is a deficient number, since it is larger than the sum of its proper divisors (1).

40086247 is an equidigital number, since it uses as much as digits as its factorization.

40086247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 40086247 is about 6331.3700728989. The cubic root of 40086247 is about 342.2408133762.

The spelling of 40086247 in words is "forty million, eighty-six thousand, two hundred forty-seven".