253673989 has 8 divisors (see below), whose sum is σ = 255515072. Its totient is φ = 251838720.

The previous prime is 253673957. The next prime is 253674007. The reversal of 253673989 is 989376352.

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 253673989 - 2⁵ = 253673957 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 (253673909) 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, 120742 + ... + 122824.

It is an arithmetic number, because the mean of its divisors is an integer number (31939384).

Almost surely, 2^253673989 is an apocalyptic number.

It is an amenable number.

253673989 is a deficient number, since it is larger than the sum of its proper divisors (1841083).

253673989 is a wasteful number, since it uses less digits than its factorization.

253673989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2907.

The product of its digits is 2449440, while the sum is 52.

The square root of 253673989 is about 15927.1462917875. The cubic root of 253673989 is about 633.0314875270.

The spelling of 253673989 in words is "two hundred fifty-three million, six hundred seventy-three thousand, nine hundred eighty-nine".