829742770 has 8 divisors (see below), whose sum is σ = 1493537004. Its totient is φ = 331897104.

The previous prime is 829742761. The next prime is 829742791. The reversal of 829742770 is 77247928.

It can be written as a sum of positive squares in 2 ways, for example, as 711128889 + 118613881 = 26667^2 + 10891^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 829742770.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41487129 + ... + 41487148.

Almost surely, 2^829742770 is an apocalyptic number.

829742770 is a deficient number, since it is larger than the sum of its proper divisors (663794234).

829742770 is a wasteful number, since it uses less digits than its factorization.

829742770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82974284.

The product of its (nonzero) digits is 395136, while the sum is 46.

The square root of 829742770 is about 28805.2559440113. The cubic root of 829742770 is about 939.6825433212.

The spelling of 829742770 in words is "eight hundred twenty-nine million, seven hundred forty-two thousand, seven hundred seventy".