797211961 has 8 divisors (see below), whose sum is σ = 981184064. Its totient is φ = 630761040.

The previous prime is 797211911. The next prime is 797211967. The reversal of 797211961 is 169112797.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-797211961 is a prime.

It is a super-2 number, since 2×797211961² = 1271093821522931042, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (797211967) 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, 4380195 + ... + 4380376.

It is an arithmetic number, because the mean of its divisors is an integer number (122648008).

Almost surely, 2^797211961 is an apocalyptic number.

It is an amenable number.

797211961 is a deficient number, since it is larger than the sum of its proper divisors (183972103).

797211961 is a wasteful number, since it uses less digits than its factorization.

797211961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8760591.

The product of its digits is 47628, while the sum is 43.

The square root of 797211961 is about 28234.9421993387. The cubic root of 797211961 is about 927.2381006290.

The spelling of 797211961 in words is "seven hundred ninety-seven million, two hundred eleven thousand, nine hundred sixty-one".