700523891 has 2 divisors, whose sum is σ = 700523892. Its totient is φ = 700523890.

The previous prime is 700523869. The next prime is 700523893. The reversal of 700523891 is 198325007.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-700523891 is a prime.

Together with 700523893, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (700523893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 350261945 + 350261946.

It is an arithmetic number, because the mean of its divisors is an integer number (350261946).

Almost surely, 2^700523891 is an apocalyptic number.

700523891 is a deficient number, since it is larger than the sum of its proper divisors (1).

700523891 is an equidigital number, since it uses as much as digits as its factorization.

700523891 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 700523891 is about 26467.4118681824. The cubic root of 700523891 is about 888.1254536083.

Adding to 700523891 its reverse (198325007), we get a palindrome (898848898).

The spelling of 700523891 in words is "seven hundred million, five hundred twenty-three thousand, eight hundred ninety-one".