864750751 has 2 divisors, whose sum is σ = 864750752. Its totient is φ = 864750750.

The previous prime is 864750661. The next prime is 864750763. The reversal of 864750751 is 157057468.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 864750751 - 2¹³ = 864742559 is a prime.

It is a super-2 number, since 2×864750751² = 1495587722710128002, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 864750698 and 864750707.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (864750451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 432375375 + 432375376.

It is an arithmetic number, because the mean of its divisors is an integer number (432375376).

Almost surely, 2^864750751 is an apocalyptic number.

864750751 is a deficient number, since it is larger than the sum of its proper divisors (1).

864750751 is an equidigital number, since it uses as much as digits as its factorization.

864750751 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 235200, while the sum is 43.

The square root of 864750751 is about 29406.6446742909. The cubic root of 864750751 is about 952.7164177354.

The spelling of 864750751 in words is "eight hundred sixty-four million, seven hundred fifty thousand, seven hundred fifty-one".