40784959 has 2 divisors, whose sum is σ = 40784960. Its totient is φ = 40784958.

The previous prime is 40784951. The next prime is 40784969. The reversal of 40784959 is 95948704.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40784959 - 2³ = 40784951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40784951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20392479 + 20392480.

It is an arithmetic number, because the mean of its divisors is an integer number (20392480).

Almost surely, 2^40784959 is an apocalyptic number.

40784959 is a deficient number, since it is larger than the sum of its proper divisors (1).

40784959 is an equidigital number, since it uses as much as digits as its factorization.

40784959 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 40784959 is about 6386.3102805924. The cubic root of 40784959 is about 344.2178148891.

The spelling of 40784959 in words is "forty million, seven hundred eighty-four thousand, nine hundred fifty-nine".