797798651 has 16 divisors (see below), whose sum is σ = 881422080. Its totient is φ = 717444000.

The previous prime is 797798647. The next prime is 797798653. The reversal of 797798651 is 156897797.

It is not a de Polignac number, because 797798651 - 2² = 797798647 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (797798653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 243776 + ... + 247026.

It is an arithmetic number, because the mean of its divisors is an integer number (55088880).

Almost surely, 2^797798651 is an apocalyptic number.

797798651 is a deficient number, since it is larger than the sum of its proper divisors (83623429).

797798651 is a wasteful number, since it uses less digits than its factorization.

797798651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3746.

The product of its digits is 6667920, while the sum is 59.

The square root of 797798651 is about 28245.3297201502. The cubic root of 797798651 is about 927.4655047800.

The spelling of 797798651 in words is "seven hundred ninety-seven million, seven hundred ninety-eight thousand, six hundred fifty-one".