153798797 has 4 divisors (see below), whose sum is σ = 153849276. Its totient is φ = 153748320.

The previous prime is 153798767. The next prime is 153798811. The reversal of 153798797 is 797897351.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 82919236 + 70879561 = 9106^2 + 8419^2 .

It is a cyclic number.

It is not a de Polignac number, because 153798797 - 2¹⁰ = 153797773 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 (153798707) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20354 + ... + 26867.

It is an arithmetic number, because the mean of its divisors is an integer number (38462319).

Almost surely, 2^153798797 is an apocalyptic number.

It is an amenable number.

153798797 is a deficient number, since it is larger than the sum of its proper divisors (50479).

153798797 is an equidigital number, since it uses as much as digits as its factorization.

153798797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50478.

The product of its digits is 3333960, while the sum is 56.

The square root of 153798797 is about 12401.5642964910. The cubic root of 153798797 is about 535.7773043190. Note that the first 3 decimals are identical.

The spelling of 153798797 in words is "one hundred fifty-three million, seven hundred ninety-eight thousand, seven hundred ninety-seven".