860743997 has 2 divisors, whose sum is σ = 860743998. Its totient is φ = 860743996.

The previous prime is 860743993. The next prime is 860744057. The reversal of 860743997 is 799347068.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 620059801 + 240684196 = 24901^2 + 15514^2 .

It is a cyclic number.

It is not a de Polignac number, because 860743997 - 2² = 860743993 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (860743993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 430371998 + 430371999.

It is an arithmetic number, because the mean of its divisors is an integer number (430371999).

Almost surely, 2^860743997 is an apocalyptic number.

It is an amenable number.

860743997 is a deficient number, since it is larger than the sum of its proper divisors (1).

860743997 is an equidigital number, since it uses as much as digits as its factorization.

860743997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2286144, while the sum is 53.

The square root of 860743997 is about 29338.4388984827. The cubic root of 860743997 is about 951.2426939462.

The spelling of 860743997 in words is "eight hundred sixty million, seven hundred forty-three thousand, nine hundred ninety-seven".