702427081 has 2 divisors, whose sum is σ = 702427082. Its totient is φ = 702427080.

The previous prime is 702427051. The next prime is 702427087. The reversal of 702427081 is 180724207.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 643383225 + 59043856 = 25365^2 + 7684^2 .

It is an emirp because it is prime and its reverse (180724207) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 702427081 - 2⁵ = 702427049 is a prime.

It is a super-2 number, since 2×702427081² = 986807608244361122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (702427087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 351213540 + 351213541.

It is an arithmetic number, because the mean of its divisors is an integer number (351213541).

Almost surely, 2^702427081 is an apocalyptic number.

It is an amenable number.

702427081 is a deficient number, since it is larger than the sum of its proper divisors (1).

702427081 is an equidigital number, since it uses as much as digits as its factorization.

702427081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6272, while the sum is 31.

The square root of 702427081 is about 26503.3409403418. The cubic root of 702427081 is about 888.9290155780.

The spelling of 702427081 in words is "seven hundred two million, four hundred twenty-seven thousand, eighty-one".