791091946 has 16 divisors (see below), whose sum is σ = 1244660544. Its totient is φ = 376383744.

The previous prime is 791091919. The next prime is 791091947. The reversal of 791091946 is 649190197.

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

It is a junction number, because it is equal to n+sod(n) for n = 791091896 and 791091905.

It is not an unprimeable number, because it can be changed into a prime (791091947) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 35676 + ... + 53431.

It is an arithmetic number, because the mean of its divisors is an integer number (77791284).

Almost surely, 2^791091946 is an apocalyptic number.

791091946 is a deficient number, since it is larger than the sum of its proper divisors (453568598).

791091946 is a wasteful number, since it uses less digits than its factorization.

791091946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89325.

The product of its (nonzero) digits is 122472, while the sum is 46.

The square root of 791091946 is about 28126.3567850513. The cubic root of 791091946 is about 924.8592709208.

It can be divided in two parts, 7910 and 91946, that added together give a square (99856 = 316²).

The spelling of 791091946 in words is "seven hundred ninety-one million, ninety-one thousand, nine hundred forty-six".