829172494 has 16 divisors (see below), whose sum is σ = 1298465280. Its totient is φ = 396368280.

The previous prime is 829172473. The next prime is 829172497. The reversal of 829172494 is 494271928.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (829172497) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149959 + ... + 155389.

It is an arithmetic number, because the mean of its divisors is an integer number (81154080).

Almost surely, 2^829172494 is an apocalyptic number.

829172494 is a deficient number, since it is larger than the sum of its proper divisors (469292786).

829172494 is a wasteful number, since it uses less digits than its factorization.

829172494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8775.

The product of its digits is 290304, while the sum is 46.

The square root of 829172494 is about 28795.3554240957. The cubic root of 829172494 is about 939.4672150546.

The spelling of 829172494 in words is "eight hundred twenty-nine million, one hundred seventy-two thousand, four hundred ninety-four".