40889963 has 2 divisors, whose sum is σ = 40889964. Its totient is φ = 40889962.

The previous prime is 40889903. The next prime is 40889987. The reversal of 40889963 is 36998804.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40889963 - 2⁸ = 40889707 is a prime.

It is not a weakly prime, because it can be changed into another prime (40889903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20444981 + 20444982.

It is an arithmetic number, because the mean of its divisors is an integer number (20444982).

Almost surely, 2^40889963 is an apocalyptic number.

40889963 is a deficient number, since it is larger than the sum of its proper divisors (1).

40889963 is an equidigital number, since it uses as much as digits as its factorization.

40889963 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 373248, while the sum is 47.

The square root of 40889963 is about 6394.5260184004. The cubic root of 40889963 is about 344.5129667776.

The spelling of 40889963 in words is "forty million, eight hundred eighty-nine thousand, nine hundred sixty-three".