797706390 has 64 divisors (see below), whose sum is σ = 2066400000. Its totient is φ = 195917184.

The previous prime is 797706367. The next prime is 797706407. The reversal of 797706390 is 93607797.

It is a Curzon number.

It is a congruent 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 31 ways as a sum of consecutive naturals, for example, 192561 + ... + 196659.

It is an arithmetic number, because the mean of its divisors is an integer number (32287500).

Almost surely, 2^797706390 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 797706390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1033200000).

797706390 is an abundant number, since it is smaller than the sum of its proper divisors (1268693610).

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

797706390 is a wasteful number, since it uses less digits than its factorization.

797706390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4621.

The product of its (nonzero) digits is 500094, while the sum is 48.

The square root of 797706390 is about 28243.6964648751. The cubic root of 797706390 is about 927.4297513169.

The spelling of 797706390 in words is "seven hundred ninety-seven million, seven hundred six thousand, three hundred ninety".