1320764471 has 4 divisors (see below), whose sum is σ = 1422361752. Its totient is φ = 1219167192.

The previous prime is 1320764413. The next prime is 1320764483. The reversal of 1320764471 is 1744670231.

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 1320764471 - 2⁶ = 1320764407 is a prime.

It is a super-3 number, since 3×1320764471³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320764411) 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, 50798621 + ... + 50798646.

It is an arithmetic number, because the mean of its divisors is an integer number (355590438).

Almost surely, 2^1320764471 is an apocalyptic number.

1320764471 is a deficient number, since it is larger than the sum of its proper divisors (101597281).

1320764471 is a wasteful number, since it uses less digits than its factorization.

1320764471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101597280.

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 1320764471 is about 36342.3234122421. The cubic root of 1320764471 is about 1097.1730360605.

The spelling of 1320764471 in words is "one billion, three hundred twenty million, seven hundred sixty-four thousand, four hundred seventy-one".