1328480697 has 4 divisors (see below), whose sum is σ = 1771307600. Its totient is φ = 885653796.

The previous prime is 1328480693. The next prime is 1328480701. The reversal of 1328480697 is 7960848231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (1328480693) and next prime (1328480701).

It is not a de Polignac number, because 1328480697 - 2² = 1328480693 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1328480693) 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, 221413447 + ... + 221413452.

It is an arithmetic number, because the mean of its divisors is an integer number (442826900).

Almost surely, 2^1328480697 is an apocalyptic number.

It is an amenable number.

1328480697 is a deficient number, since it is larger than the sum of its proper divisors (442826903).

1328480697 is an equidigital number, since it uses as much as digits as its factorization.

1328480697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442826902.

The product of its (nonzero) digits is 580608, while the sum is 48.

The square root of 1328480697 is about 36448.3291386587. The cubic root of 1328480697 is about 1099.3055387942.

The spelling of 1328480697 in words is "one billion, three hundred twenty-eight million, four hundred eighty thousand, six hundred ninety-seven".