245473689 has 8 divisors (see below), whose sum is σ = 332845920. Its totient is φ = 160875296.

The previous prime is 245473667. The next prime is 245473691. The reversal of 245473689 is 986374542.

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 245473689 - 2⁷ = 245473561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (245473639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 693252 + ... + 693605.

It is an arithmetic number, because the mean of its divisors is an integer number (41605740).

Almost surely, 2^245473689 is an apocalyptic number.

It is an amenable number.

245473689 is a deficient number, since it is larger than the sum of its proper divisors (87372231).

245473689 is a wasteful number, since it uses less digits than its factorization.

245473689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1386919.

The product of its digits is 1451520, while the sum is 48.

The square root of 245473689 is about 15667.5999757461. The cubic root of 245473689 is about 626.1354837799.

The spelling of 245473689 in words is "two hundred forty-five million, four hundred seventy-three thousand, six hundred eighty-nine".