4312761997 has 4 divisors (see below), whose sum is σ = 4417951356. Its totient is φ = 4207572640.

The previous prime is 4312761989. The next prime is 4312762001. The reversal of 4312761997 is 7991672134.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7991672134 = 2 ⋅3995836067.

It can be written as a sum of positive squares in 2 ways, for example, as 321807721 + 3990954276 = 17939^2 + 63174^2 .

It is a cyclic number.

It is not a de Polignac number, because 4312761997 - 2³ = 4312761989 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4312761997.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4312761967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52594618 + ... + 52594699.

It is an arithmetic number, because the mean of its divisors is an integer number (1104487839).

Almost surely, 2^4312761997 is an apocalyptic number.

It is an amenable number.

4312761997 is a deficient number, since it is larger than the sum of its proper divisors (105189359).

4312761997 is a wasteful number, since it uses less digits than its factorization.

4312761997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105189358.

The product of its digits is 571536, while the sum is 49.

The square root of 4312761997 is about 65671.6224635877. The cubic root of 4312761997 is about 1627.7404798797.

The spelling of 4312761997 in words is "four billion, three hundred twelve million, seven hundred sixty-one thousand, nine hundred ninety-seven".