791698 has 4 divisors (see below), whose sum is σ = 1187550. Its totient is φ = 395848.

The previous prime is 791677. The next prime is 791699. The reversal of 791698 is 896197.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 896197 = 271 ⋅3307.

It can be written as a sum of positive squares in only one way, i.e., 528529 + 263169 = 727^2 + 513^2 .

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 a self number, because there is not a number n which added to its sum of digits gives 791698.

It is not an unprimeable number, because it can be changed into a prime (791699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197923 + ... + 197926.

2⁷⁹¹⁶⁹⁸ is an apocalyptic number.

791698 is a deficient number, since it is larger than the sum of its proper divisors (395852).

791698 is a wasteful number, since it uses less digits than its factorization.

791698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395851.

The product of its digits is 27216, while the sum is 40.

The square root of 791698 is about 889.7741286416. The cubic root of 791698 is about 92.5095388264.

The spelling of 791698 in words is "seven hundred ninety-one thousand, six hundred ninety-eight".