40587973 has 2 divisors, whose sum is σ = 40587974. Its totient is φ = 40587972.

The previous prime is 40587949. The next prime is 40587977. The reversal of 40587973 is 37978504.

It is a happy number.

40587973 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40538689 + 49284 = 6367^2 + 222^2 .

It is a cyclic number.

It is not a de Polignac number, because 40587973 - 2¹⁷ = 40456901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40587977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20293986 + 20293987.

It is an arithmetic number, because the mean of its divisors is an integer number (20293987).

Almost surely, 2^40587973 is an apocalyptic number.

It is an amenable number.

40587973 is a deficient number, since it is larger than the sum of its proper divisors (1).

40587973 is an equidigital number, since it uses as much as digits as its factorization.

40587973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 211680, while the sum is 43.

The square root of 40587973 is about 6370.8690929888. The cubic root of 40587973 is about 343.6627446634.

The spelling of 40587973 in words is "forty million, five hundred eighty-seven thousand, nine hundred seventy-three".