797947845 has 16 divisors (see below), whose sum is σ = 1343912640. Its totient is φ = 403173504.

The previous prime is 797947841. The next prime is 797947849. The reversal of 797947845 is 548749797.

It is an interprime number because it is at equal distance from previous prime (797947841) and next prime (797947849).

It is not a de Polignac number, because 797947845 - 2² = 797947841 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (797947841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1399624 + ... + 1400193.

It is an arithmetic number, because the mean of its divisors is an integer number (83994540).

Almost surely, 2^797947845 is an apocalyptic number.

It is an amenable number.

797947845 is a deficient number, since it is larger than the sum of its proper divisors (545964795).

797947845 is a wasteful number, since it uses less digits than its factorization.

797947845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2799844.

The product of its digits is 17781120, while the sum is 60.

The square root of 797947845 is about 28247.9706350739. The cubic root of 797947845 is about 927.5233153832.

The spelling of 797947845 in words is "seven hundred ninety-seven million, nine hundred forty-seven thousand, eight hundred forty-five".