1321701897 has 8 divisors (see below), whose sum is σ = 1762469280. Its totient is φ = 881034560.

The previous prime is 1321701881. The next prime is 1321701937. The reversal of 1321701897 is 7981071231.

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

It is a cyclic number.

It is not a de Polignac number, because 1321701897 - 2⁴ = 1321701881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1321701097) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14929 + ... + 53537.

It is an arithmetic number, because the mean of its divisors is an integer number (220308660).

Almost surely, 2^1321701897 is an apocalyptic number.

It is an amenable number.

1321701897 is a deficient number, since it is larger than the sum of its proper divisors (440767383).

1321701897 is a wasteful number, since it uses less digits than its factorization.

1321701897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50023.

The product of its (nonzero) digits is 21168, while the sum is 39.

The square root of 1321701897 is about 36355.2182911890. The cubic root of 1321701897 is about 1097.4325512415.

The spelling of 1321701897 in words is "one billion, three hundred twenty-one million, seven hundred one thousand, eight hundred ninety-seven".