40854487 has 2 divisors, whose sum is σ = 40854488. Its totient is φ = 40854486.

The previous prime is 40854481. The next prime is 40854493. The reversal of 40854487 is 78445804.

It is a balanced prime because it is at equal distance from previous prime (40854481) and next prime (40854493).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40854487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40854481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20427243 + 20427244.

It is an arithmetic number, because the mean of its divisors is an integer number (20427244).

Almost surely, 2^40854487 is an apocalyptic number.

40854487 is a deficient number, since it is larger than the sum of its proper divisors (1).

40854487 is an equidigital number, since it uses as much as digits as its factorization.

40854487 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 143360, while the sum is 40.

The square root of 40854487 is about 6391.7514814016. The cubic root of 40854487 is about 344.4133051705.

The spelling of 40854487 in words is "forty million, eight hundred fifty-four thousand, four hundred eighty-seven".