700391 has 2 divisors, whose sum is σ = 700392. Its totient is φ = 700390.

The previous prime is 700387. The next prime is 700393. The reversal of 700391 is 193007.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 700391 - 2² = 700387 is a prime.

Together with 700393, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 700391.

It is not a weakly prime, because it can be changed into another prime (700393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 350195 + 350196.

It is an arithmetic number, because the mean of its divisors is an integer number (350196).

2⁷⁰⁰³⁹¹ is an apocalyptic number.

700391 is a deficient number, since it is larger than the sum of its proper divisors (1).

700391 is an equidigital number, since it uses as much as digits as its factorization.

700391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 189, while the sum is 20.

The square root of 700391 is about 836.8936611064. The cubic root of 700391 is about 88.8069290240.

Adding to 700391 its reverse (193007), we get a palindrome (893398).

The spelling of 700391 in words is "seven hundred thousand, three hundred ninety-one".