708457 has 2 divisors, whose sum is σ = 708458. Its totient is φ = 708456.

The previous prime is 708437. The next prime is 708473. The reversal of 708457 is 754807.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 561001 + 147456 = 749^2 + 384^2 .

It is a cyclic number.

It is not a de Polignac number, because 708457 - 2⁷ = 708329 is a prime.

It is a super-2 number, since 2×708457² = 1003822641698, which contains 22 as substring.

It is a Chen prime.

708457 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (708437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 354228 + 354229.

It is an arithmetic number, because the mean of its divisors is an integer number (354229).

2⁷⁰⁸⁴⁵⁷ is an apocalyptic number.

It is an amenable number.

708457 is a deficient number, since it is larger than the sum of its proper divisors (1).

708457 is an equidigital number, since it uses as much as digits as its factorization.

708457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7840, while the sum is 31.

The square root of 708457 is about 841.6988772714. The cubic root of 708457 is about 89.1465413960.

The spelling of 708457 in words is "seven hundred eight thousand, four hundred fifty-seven".