789801255 has 24 divisors (see below), whose sum is σ = 1428511968. Its totient is φ = 402912576.

The previous prime is 789801251. The next prime is 789801263. The reversal of 789801255 is 552108987.

It is a happy number.

It is not a de Polignac number, because 789801255 - 2² = 789801251 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 789801255.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (789801251) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 380512 + ... + 382581.

It is an arithmetic number, because the mean of its divisors is an integer number (59521332).

Almost surely, 2^789801255 is an apocalyptic number.

789801255 is a deficient number, since it is larger than the sum of its proper divisors (638710713).

789801255 is a wasteful number, since it uses less digits than its factorization.

789801255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 763127 (or 763124 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 45.

The square root of 789801255 is about 28103.4029078331. The cubic root of 789801255 is about 924.3560182868.

The spelling of 789801255 in words is "seven hundred eighty-nine million, eight hundred one thousand, two hundred fifty-five".