40785377 has 2 divisors, whose sum is σ = 40785378. Its totient is φ = 40785376.

The previous prime is 40785341. The next prime is 40785383. The reversal of 40785377 is 77358704.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28047616 + 12737761 = 5296^2 + 3569^2 .

It is a cyclic number.

It is not a de Polignac number, because 40785377 - 2⁶ = 40785313 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40785337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20392688 + 20392689.

It is an arithmetic number, because the mean of its divisors is an integer number (20392689).

Almost surely, 2^40785377 is an apocalyptic number.

It is an amenable number.

40785377 is a deficient number, since it is larger than the sum of its proper divisors (1).

40785377 is an equidigital number, since it uses as much as digits as its factorization.

40785377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 164640, while the sum is 41.

The square root of 40785377 is about 6386.3430067606. The cubic root of 40785377 is about 344.2189908337.

The spelling of 40785377 in words is "forty million, seven hundred eighty-five thousand, three hundred seventy-seven".