797981745 has 64 divisors (see below), whose sum is σ = 1456164864. Its totient is φ = 369707520.

The previous prime is 797981731. The next prime is 797981749. The reversal of 797981745 is 547189797.

It is not a de Polignac number, because 797981745 - 2¹⁰ = 797980721 is a prime.

It is not an unprimeable number, because it can be changed into a prime (797981749) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 332269 + ... + 334661.

It is an arithmetic number, because the mean of its divisors is an integer number (22752576).

Almost surely, 2^797981745 is an apocalyptic number.

It is an amenable number.

797981745 is a deficient number, since it is larger than the sum of its proper divisors (658183119).

797981745 is a wasteful number, since it uses less digits than its factorization.

797981745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2502.

The product of its digits is 4445280, while the sum is 57.

The square root of 797981745 is about 28248.5706718057. The cubic root of 797981745 is about 927.5364501578.

The spelling of 797981745 in words is "seven hundred ninety-seven million, nine hundred eighty-one thousand, seven hundred forty-five".