709478 has 32 divisors (see below), whose sum is σ = 1410048. Its totient is φ = 259200.

The previous prime is 709469. The next prime is 709507. The reversal of 709478 is 874907.

It is an alternating number because its digits alternate between odd and even.

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 709478.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2483 + ... + 2753.

It is an arithmetic number, because the mean of its divisors is an integer number (44064).

2⁷⁰⁹⁴⁷⁸ is an apocalyptic number.

709478 is a deficient number, since it is larger than the sum of its proper divisors (700570).

709478 is a wasteful number, since it uses less digits than its factorization.

709478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308.

The product of its (nonzero) digits is 14112, while the sum is 35.

The square root of 709478 is about 842.3051703510. The cubic root of 709478 is about 89.1893456545.

The spelling of 709478 in words is "seven hundred nine thousand, four hundred seventy-eight".