40776313 has 2 divisors, whose sum is σ = 40776314. Its totient is φ = 40776312.

The previous prime is 40776311. The next prime is 40776343. The reversal of 40776313 is 31367704.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24880144 + 15896169 = 4988^2 + 3987^2 .

It is a cyclic number.

It is not a de Polignac number, because 40776313 - 2¹ = 40776311 is a prime.

Together with 40776311, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (40776311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20388156 + 20388157.

It is an arithmetic number, because the mean of its divisors is an integer number (20388157).

Almost surely, 2^40776313 is an apocalyptic number.

It is an amenable number.

40776313 is a deficient number, since it is larger than the sum of its proper divisors (1).

40776313 is an equidigital number, since it uses as much as digits as its factorization.

40776313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10584, while the sum is 31.

The square root of 40776313 is about 6385.6333280263. The cubic root of 40776313 is about 344.1934896017.

The spelling of 40776313 in words is "forty million, seven hundred seventy-six thousand, three hundred thirteen".