1207805797 has 4 divisors (see below), whose sum is σ = 1317606336. Its totient is φ = 1098005260.

The previous prime is 1207805761. The next prime is 1207805857. The reversal of 1207805797 is 7975087021.

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, and also an emirpimes, since its reverse is a distinct semiprime: 7975087021 = 11 ⋅725007911.

It is a de Polignac number, because none of the positive numbers 2^k-1207805797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1207805897) 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, 54900253 + ... + 54900274.

It is an arithmetic number, because the mean of its divisors is an integer number (329401584).

Almost surely, 2^1207805797 is an apocalyptic number.

It is an amenable number.

1207805797 is a deficient number, since it is larger than the sum of its proper divisors (109800539).

1207805797 is a wasteful number, since it uses less digits than its factorization.

1207805797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109800538.

The product of its (nonzero) digits is 246960, while the sum is 46.

The square root of 1207805797 is about 34753.5004999496. The cubic root of 1207805797 is about 1064.9577292252.

The spelling of 1207805797 in words is "one billion, two hundred seven million, eight hundred five thousand, seven hundred ninety-seven".