709478406 has 64 divisors (see below), whose sum is σ = 1940467200. Its totient is φ = 187113888.

The previous prime is 709478387. The next prime is 709478443. The reversal of 709478406 is 604874907.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 67276 + ... + 77103.

It is an arithmetic number, because the mean of its divisors is an integer number (30319800).

Almost surely, 2^709478406 is an apocalyptic number.

709478406 is an abundant number, since it is smaller than the sum of its proper divisors (1230988794).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

709478406 is a wasteful number, since it uses less digits than its factorization.

709478406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144410 (or 144404 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The square root of 709478406 is about 26636.0358537077. The cubic root of 709478406 is about 891.8936266739.

The spelling of 709478406 in words is "seven hundred nine million, four hundred seventy-eight thousand, four hundred six".