40751693 has 2 divisors, whose sum is σ = 40751694. Its totient is φ = 40751692.

The previous prime is 40751621. The next prime is 40751743. The reversal of 40751693 is 39615704.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30492484 + 10259209 = 5522^2 + 3203^2 .

It is a cyclic number.

It is not a de Polignac number, because 40751693 - 2⁸ = 40751437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40751993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20375846 + 20375847.

It is an arithmetic number, because the mean of its divisors is an integer number (20375847).

Almost surely, 2^40751693 is an apocalyptic number.

It is an amenable number.

40751693 is a deficient number, since it is larger than the sum of its proper divisors (1).

40751693 is an equidigital number, since it uses as much as digits as its factorization.

40751693 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 40751693 is about 6383.7052720188. The cubic root of 40751693 is about 344.1242030547.

The spelling of 40751693 in words is "forty million, seven hundred fifty-one thousand, six hundred ninety-three".