861052793 has 2 divisors, whose sum is σ = 861052794. Its totient is φ = 861052792.

The previous prime is 861052747. The next prime is 861052799. The reversal of 861052793 is 397250168.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 844948624 + 16104169 = 29068^2 + 4013^2 .

It is a cyclic number.

It is not a de Polignac number, because 861052793 - 2¹⁰ = 861051769 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 861052793.

It is not a weakly prime, because it can be changed into another prime (861052799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 430526396 + 430526397.

It is an arithmetic number, because the mean of its divisors is an integer number (430526397).

Almost surely, 2^861052793 is an apocalyptic number.

It is an amenable number.

861052793 is a deficient number, since it is larger than the sum of its proper divisors (1).

861052793 is an equidigital number, since it uses as much as digits as its factorization.

861052793 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90720, while the sum is 41.

The square root of 861052793 is about 29343.7010787665. The cubic root of 861052793 is about 951.3564346249.

The spelling of 861052793 in words is "eight hundred sixty-one million, fifty-two thousand, seven hundred ninety-three".