830172783 has 16 divisors (see below), whose sum is σ = 1215528192. Its totient is φ = 499800000.

The previous prime is 830172779. The next prime is 830172793. The reversal of 830172783 is 387271038.

It is not a de Polignac number, because 830172783 - 2² = 830172779 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (830172773) 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, 78318 + ... + 88283.

It is an arithmetic number, because the mean of its divisors is an integer number (75970512).

Almost surely, 2^830172783 is an apocalyptic number.

830172783 is a deficient number, since it is larger than the sum of its proper divisors (385355409).

830172783 is a wasteful number, since it uses less digits than its factorization.

830172783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166766.

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 830172783 is about 28812.7191184727. The cubic root of 830172783 is about 939.8448449969.

The spelling of 830172783 in words is "eight hundred thirty million, one hundred seventy-two thousand, seven hundred eighty-three".