834392506 has 4 divisors (see below), whose sum is σ = 1251588762. Its totient is φ = 417196252.

The previous prime is 834392491. The next prime is 834392509. The reversal of 834392506 is 605293438.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 718722481 + 115670025 = 26809^2 + 10755^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (834392509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 208598125 + ... + 208598128.

Almost surely, 2^834392506 is an apocalyptic number.

834392506 is a deficient number, since it is larger than the sum of its proper divisors (417196256).

834392506 is a wasteful number, since it uses less digits than its factorization.

834392506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417196255.

The product of its (nonzero) digits is 155520, while the sum is 40.

The square root of 834392506 is about 28885.8530426228. The cubic root of 834392506 is about 941.4345479445.

The spelling of 834392506 in words is "eight hundred thirty-four million, three hundred ninety-two thousand, five hundred six".