245733987 has 16 divisors (see below), whose sum is σ = 334172160. Its totient is φ = 160587072.

The previous prime is 245733979. The next prime is 245733989. The reversal of 245733987 is 789337542.

It is not a de Polignac number, because 245733987 - 2³ = 245733979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (245733989) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33214 + ... + 39932.

It is an arithmetic number, because the mean of its divisors is an integer number (20885760).

Almost surely, 2^245733987 is an apocalyptic number.

245733987 is a deficient number, since it is larger than the sum of its proper divisors (88438173).

245733987 is a wasteful number, since it uses less digits than its factorization.

245733987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6962.

The product of its digits is 1270080, while the sum is 48.

The square root of 245733987 is about 15675.9046628895. The cubic root of 245733987 is about 626.3567216657.

The spelling of 245733987 in words is "two hundred forty-five million, seven hundred thirty-three thousand, nine hundred eighty-seven".