40751797 has 2 divisors, whose sum is σ = 40751798. Its totient is φ = 40751796.

The previous prime is 40751761. The next prime is 40751801. The reversal of 40751797 is 79715704.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40056241 + 695556 = 6329^2 + 834^2 .

It is a cyclic number.

It is not a de Polignac number, because 40751797 - 2¹¹ = 40749749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40751747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20375898 + 20375899.

It is an arithmetic number, because the mean of its divisors is an integer number (20375899).

Almost surely, 2^40751797 is an apocalyptic number.

It is an amenable number.

40751797 is a deficient number, since it is larger than the sum of its proper divisors (1).

40751797 is an equidigital number, since it uses as much as digits as its factorization.

40751797 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 61740, while the sum is 40.

The square root of 40751797 is about 6383.7134177530. The cubic root of 40751797 is about 344.1244957942.

The spelling of 40751797 in words is "forty million, seven hundred fifty-one thousand, seven hundred ninety-seven".