700442257 has 2 divisors, whose sum is σ = 700442258. Its totient is φ = 700442256.

The previous prime is 700442251. The next prime is 700442287. The reversal of 700442257 is 752244007.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 694796881 + 5645376 = 26359^2 + 2376^2 .

It is an emirp because it is prime and its reverse (752244007) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 700442257 - 2⁷ = 700442129 is a prime.

It is not a weakly prime, because it can be changed into another prime (700442251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 350221128 + 350221129.

It is an arithmetic number, because the mean of its divisors is an integer number (350221129).

Almost surely, 2^700442257 is an apocalyptic number.

It is an amenable number.

700442257 is a deficient number, since it is larger than the sum of its proper divisors (1).

700442257 is an equidigital number, since it uses as much as digits as its factorization.

700442257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15680, while the sum is 31.

The square root of 700442257 is about 26465.8696626429. The cubic root of 700442257 is about 888.0909536906.

The spelling of 700442257 in words is "seven hundred million, four hundred forty-two thousand, two hundred fifty-seven".