40067777 has 2 divisors, whose sum is σ = 40067778. Its totient is φ = 40067776.

The previous prime is 40067767. The next prime is 40067803. The reversal of 40067777 is 77776004.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39488656 + 579121 = 6284^2 + 761^2 .

It is a cyclic number.

It is not a de Polignac number, because 40067777 - 2¹⁰ = 40066753 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40067777.

It is not a weakly prime, because it can be changed into another prime (40067767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20033888 + 20033889.

It is an arithmetic number, because the mean of its divisors is an integer number (20033889).

Almost surely, 2^40067777 is an apocalyptic number.

It is an amenable number.

40067777 is a deficient number, since it is larger than the sum of its proper divisors (1).

40067777 is an equidigital number, since it uses as much as digits as its factorization.

40067777 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 57624, while the sum is 38.

The square root of 40067777 is about 6329.9112947971. The cubic root of 40067777 is about 342.1882420715.

The spelling of 40067777 in words is "forty million, sixty-seven thousand, seven hundred seventy-seven".