445698023 has 4 divisors (see below), whose sum is σ = 445813368. Its totient is φ = 445582680.

The previous prime is 445697999. The next prime is 445698049. The reversal of 445698023 is 320896544.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 445698023 - 2⁸ = 445697767 is a prime.

It is a super-2 number, since 2×445698023² = 397293455412217058, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445698923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51668 + ... + 59673.

It is an arithmetic number, because the mean of its divisors is an integer number (111453342).

Almost surely, 2^445698023 is an apocalyptic number.

445698023 is a deficient number, since it is larger than the sum of its proper divisors (115345).

445698023 is a wasteful number, since it uses less digits than its factorization.

445698023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115344.

The product of its (nonzero) digits is 207360, while the sum is 41.

The square root of 445698023 is about 21111.5613586490. The cubic root of 445698023 is about 763.8596494604.

The spelling of 445698023 in words is "four hundred forty-five million, six hundred ninety-eight thousand, twenty-three".