7812007697 has 8 divisors (see below), whose sum is σ = 8414285544. Its totient is φ = 7209923328.

The previous prime is 7812007649. The next prime is 7812007699. The reversal of 7812007697 is 7967002187.

It can be written as a sum of positive squares in 4 ways, for example, as 67831696 + 7744176001 = 8236^2 + 88001^2 .

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 7812007697 - 2⁶ = 7812007633 is a prime.

It is a super-2 number, since 2×7812007697² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7812007699) 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, 41723 + ... + 131775.

It is an arithmetic number, because the mean of its divisors is an integer number (1051785693).

Almost surely, 2^7812007697 is an apocalyptic number.

It is an amenable number.

7812007697 is a deficient number, since it is larger than the sum of its proper divisors (602277847).

7812007697 is a wasteful number, since it uses less digits than its factorization.

7812007697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96739.

The product of its (nonzero) digits is 296352, while the sum is 47.

The square root of 7812007697 is about 88385.5627181272. The cubic root of 7812007697 is about 1984.2096350287.

The spelling of 7812007697 in words is "seven billion, eight hundred twelve million, seven thousand, six hundred ninety-seven".