860542807 has 2 divisors, whose sum is σ = 860542808. Its totient is φ = 860542806.

The previous prime is 860542763. The next prime is 860542811. The reversal of 860542807 is 708245068.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-860542807 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 860542807.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (860542847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 430271403 + 430271404.

It is an arithmetic number, because the mean of its divisors is an integer number (430271404).

Almost surely, 2^860542807 is an apocalyptic number.

860542807 is a deficient number, since it is larger than the sum of its proper divisors (1).

860542807 is an equidigital number, since it uses as much as digits as its factorization.

860542807 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 107520, while the sum is 40.

The square root of 860542807 is about 29335.0099198892. The cubic root of 860542807 is about 951.1685737931.

The spelling of 860542807 in words is "eight hundred sixty million, five hundred forty-two thousand, eight hundred seven".