709378 has 4 divisors (see below), whose sum is σ = 1064070. Its totient is φ = 354688.

The previous prime is 709351. The next prime is 709381. The reversal of 709378 is 873907.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 873907 = 83 ⋅10529.

It can be written as a sum of positive squares in only one way, i.e., 431649 + 277729 = 657^2 + 527^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177343 + ... + 177346.

2⁷⁰⁹³⁷⁸ is an apocalyptic number.

709378 is a deficient number, since it is larger than the sum of its proper divisors (354692).

709378 is a wasteful number, since it uses less digits than its factorization.

709378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354691.

The product of its (nonzero) digits is 10584, while the sum is 34.

The square root of 709378 is about 842.2458073508. The cubic root of 709378 is about 89.1851550835.

The spelling of 709378 in words is "seven hundred nine thousand, three hundred seventy-eight".