830391253 has 16 divisors (see below), whose sum is σ = 860520960. Its totient is φ = 800868096.

The previous prime is 830391251. The next prime is 830391269. The reversal of 830391253 is 352193038.

It is a cyclic number.

It is not a de Polignac number, because 830391253 - 2¹ = 830391251 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 (830391251) 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, 1631163 + ... + 1631671.

It is an arithmetic number, because the mean of its divisors is an integer number (53782560).

Almost surely, 2^830391253 is an apocalyptic number.

It is an amenable number.

830391253 is a deficient number, since it is larger than the sum of its proper divisors (30129707).

830391253 is a wasteful number, since it uses less digits than its factorization.

830391253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 996.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 830391253 is about 28816.5100766904. The cubic root of 830391253 is about 939.9272816087.

The spelling of 830391253 in words is "eight hundred thirty million, three hundred ninety-one thousand, two hundred fifty-three".