40989763 has 2 divisors, whose sum is σ = 40989764. Its totient is φ = 40989762.

The previous prime is 40989761. The next prime is 40989779. The reversal of 40989763 is 36798904.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40989763 - 2¹ = 40989761 is a prime.

Together with 40989761, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (40989761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20494881 + 20494882.

It is an arithmetic number, because the mean of its divisors is an integer number (20494882).

Almost surely, 2^40989763 is an apocalyptic number.

40989763 is a deficient number, since it is larger than the sum of its proper divisors (1).

40989763 is an equidigital number, since it uses as much as digits as its factorization.

40989763 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 40989763 is about 6402.3248121288. The cubic root of 40989763 is about 344.7930229503.

It can be divided in two parts, 4098 and 9763, that added together give a triangular number (13861 = T₁₆₆).

The spelling of 40989763 in words is "forty million, nine hundred eighty-nine thousand, seven hundred sixty-three".