862713845 has 12 divisors (see below), whose sum is σ = 1204278444. Its totient is φ = 591575040.

The previous prime is 862713823. The next prime is 862713853. The reversal of 862713845 is 548317268.

It can be written as a sum of positive squares in 2 ways, for example, as 447491716 + 415222129 = 21154^2 + 20377^2 .

It is not a de Polignac number, because 862713845 - 2⁸ = 862713589 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 862713796 and 862713805.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1760396 + ... + 1760885.

It is an arithmetic number, because the mean of its divisors is an integer number (100356537).

Almost surely, 2^862713845 is an apocalyptic number.

It is an amenable number.

862713845 is a deficient number, since it is larger than the sum of its proper divisors (341564599).

862713845 is a wasteful number, since it uses less digits than its factorization.

862713845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3521300 (or 3521293 counting only the distinct ones).

The product of its digits is 322560, while the sum is 44.

The square root of 862713845 is about 29371.9908245934. The cubic root of 862713845 is about 951.9677937490.

The spelling of 862713845 in words is "eight hundred sixty-two million, seven hundred thirteen thousand, eight hundred forty-five".