446423987 has 2 divisors, whose sum is σ = 446423988. Its totient is φ = 446423986.

The previous prime is 446423983. The next prime is 446424053. The reversal of 446423987 is 789324644.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 446423987 - 2² = 446423983 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (446423983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 223211993 + 223211994.

It is an arithmetic number, because the mean of its divisors is an integer number (223211994).

Almost surely, 2^446423987 is an apocalyptic number.

446423987 is a deficient number, since it is larger than the sum of its proper divisors (1).

446423987 is an equidigital number, since it uses as much as digits as its factorization.

446423987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1161216, while the sum is 47.

The square root of 446423987 is about 21128.7478805536. The cubic root of 446423987 is about 764.2741556733.

The spelling of 446423987 in words is "four hundred forty-six million, four hundred twenty-three thousand, nine hundred eighty-seven".