445499987 has 2 divisors, whose sum is σ = 445499988. Its totient is φ = 445499986.

The previous prime is 445499983. The next prime is 445500007. The reversal of 445499987 is 789994544.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 445499987 - 2² = 445499983 is a prime.

It is not a weakly prime, because it can be changed into another prime (445499983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222749993 + 222749994.

It is an arithmetic number, because the mean of its divisors is an integer number (222749994).

Almost surely, 2^445499987 is an apocalyptic number.

445499987 is a deficient number, since it is larger than the sum of its proper divisors (1).

445499987 is an equidigital number, since it uses as much as digits as its factorization.

445499987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13063680, while the sum is 59.

The square root of 445499987 is about 21106.8706112488. The cubic root of 445499987 is about 763.7464980200.

The spelling of 445499987 in words is "four hundred forty-five million, four hundred ninety-nine thousand, nine hundred eighty-seven".