441572987 has 2 divisors, whose sum is σ = 441572988. Its totient is φ = 441572986.

The previous prime is 441572969. The next prime is 441573001. The reversal of 441572987 is 789275144.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 441572987 - 2⁸ = 441572731 is a prime.

It is not a weakly prime, because it can be changed into another prime (441572687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220786493 + 220786494.

It is an arithmetic number, because the mean of its divisors is an integer number (220786494).

Almost surely, 2^441572987 is an apocalyptic number.

441572987 is a deficient number, since it is larger than the sum of its proper divisors (1).

441572987 is an equidigital number, since it uses as much as digits as its factorization.

441572987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 564480, while the sum is 47.

The square root of 441572987 is about 21013.6381190883. The cubic root of 441572987 is about 761.4957770647.

The spelling of 441572987 in words is "four hundred forty-one million, five hundred seventy-two thousand, nine hundred eighty-seven".