445653023 has 4 divisors (see below), whose sum is σ = 447517920. Its totient is φ = 443788128.

The previous prime is 445652981. The next prime is 445653029. The reversal of 445653023 is 320356544.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-445653023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445653029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 932090 + ... + 932567.

It is an arithmetic number, because the mean of its divisors is an integer number (111879480).

Almost surely, 2^445653023 is an apocalyptic number.

445653023 is a deficient number, since it is larger than the sum of its proper divisors (1864897).

445653023 is a wasteful number, since it uses less digits than its factorization.

445653023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1864896.

The product of its (nonzero) digits is 43200, while the sum is 32.

The square root of 445653023 is about 21110.4955650027. The cubic root of 445653023 is about 763.8339408420.

The spelling of 445653023 in words is "four hundred forty-five million, six hundred fifty-three thousand, twenty-three".