64452023 has 4 divisors (see below), whose sum is σ = 64471680. Its totient is φ = 64432368.

The previous prime is 64452001. The next prime is 64452029. The reversal of 64452023 is 32025446.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32025446 = 2 ⋅16012723.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64452023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64451983 and 64452001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64452029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3590 + ... + 11907.

It is an arithmetic number, because the mean of its divisors is an integer number (16117920).

Almost surely, 2^64452023 is an apocalyptic number.

64452023 is a deficient number, since it is larger than the sum of its proper divisors (19657).

64452023 is a wasteful number, since it uses less digits than its factorization.

64452023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19656.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 64452023 is about 8028.2017289054. The cubic root of 64452023 is about 400.9395061760.

Adding to 64452023 its reverse (32025446), we get a palindrome (96477469).

The spelling of 64452023 in words is "sixty-four million, four hundred fifty-two thousand, twenty-three".