706451 has 4 divisors (see below), whose sum is σ = 713832. Its totient is φ = 699072.

The previous prime is 706427. The next prime is 706463. The reversal of 706451 is 154607.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 154607 = 349 ⋅443.

It is a cyclic number.

It is not a de Polignac number, because 706451 - 2¹⁰ = 705427 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 706451.

It is not an unprimeable number, because it can be changed into a prime (706481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3545 + ... + 3738.

It is an arithmetic number, because the mean of its divisors is an integer number (178458).

2⁷⁰⁶⁴⁵¹ is an apocalyptic number.

706451 is a deficient number, since it is larger than the sum of its proper divisors (7381).

706451 is an equidigital number, since it uses as much as digits as its factorization.

706451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7380.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 706451 is about 840.5063949786. The cubic root of 706451 is about 89.0623222116.

The spelling of 706451 in words is "seven hundred six thousand, four hundred fifty-one".