1673564385 has 8 divisors (see below), whose sum is σ = 2677703040. Its totient is φ = 892567664.

The previous prime is 1673564383. The next prime is 1673564443. The reversal of 1673564385 is 5834653761.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1673564385 - 2¹ = 1673564383 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1673564383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55785465 + ... + 55785494.

It is an arithmetic number, because the mean of its divisors is an integer number (334712880).

Almost surely, 2^1673564385 is an apocalyptic number.

1673564385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1673564385 is a deficient number, since it is larger than the sum of its proper divisors (1004138655).

1673564385 is a wasteful number, since it uses less digits than its factorization.

1673564385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111570967.

The product of its digits is 1814400, while the sum is 48.

The square root of 1673564385 is about 40909.2212710044. The cubic root of 1673564385 is about 1187.2644801247.

The spelling of 1673564385 in words is "one billion, six hundred seventy-three million, five hundred sixty-four thousand, three hundred eighty-five".