897329679691 has 4 divisors (see below), whose sum is σ = 898515056512. Its totient is φ = 896144302872.

The previous prime is 897329679661. The next prime is 897329679751. The reversal of 897329679691 is 196976923798.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 897329679691 - 2⁹ = 897329679179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (897329679661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 592687275 + ... + 592688788.

It is an arithmetic number, because the mean of its divisors is an integer number (224628764128).

Almost surely, 2^897329679691 is an apocalyptic number.

897329679691 is a deficient number, since it is larger than the sum of its proper divisors (1185376821).

897329679691 is a wasteful number, since it uses less digits than its factorization.

897329679691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1185376820.

The product of its digits is 555532992, while the sum is 76.

The spelling of 897329679691 in words is "eight hundred ninety-seven billion, three hundred twenty-nine million, six hundred seventy-nine thousand, six hundred ninety-one".