797443890 has 16 divisors (see below), whose sum is σ = 1913865408. Its totient is φ = 212651696.

The previous prime is 797443873. The next prime is 797443903. The reversal of 797443890 is 98344797.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13290702 + ... + 13290761.

It is an arithmetic number, because the mean of its divisors is an integer number (119616588).

Almost surely, 2^797443890 is an apocalyptic number.

797443890 is an abundant number, since it is smaller than the sum of its proper divisors (1116421518).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

797443890 is a wasteful number, since it uses less digits than its factorization.

797443890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26581473.

The product of its (nonzero) digits is 1524096, while the sum is 51.

The square root of 797443890 is about 28239.0490278975. The cubic root of 797443890 is about 927.3280108681.

The spelling of 797443890 in words is "seven hundred ninety-seven million, four hundred forty-three thousand, eight hundred ninety".