313438609 has 8 divisors (see below), whose sum is σ = 344960352. Its totient is φ = 282421440.

The previous prime is 313438603. The next prime is 313438633. The reversal of 313438609 is 906834313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 313438609 - 2⁵ = 313438577 is a prime.

It is a super-2 number, since 2×313438609² = 196487523223709762, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (313438603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124839 + ... + 127324.

It is an arithmetic number, because the mean of its divisors is an integer number (43120044).

Almost surely, 2^313438609 is an apocalyptic number.

It is an amenable number.

313438609 is a deficient number, since it is larger than the sum of its proper divisors (31521743).

313438609 is a wasteful number, since it uses less digits than its factorization.

313438609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252287.

The product of its (nonzero) digits is 46656, while the sum is 37.

The square root of 313438609 is about 17704.1974966390. The cubic root of 313438609 is about 679.2831322186.

The spelling of 313438609 in words is "three hundred thirteen million, four hundred thirty-eight thousand, six hundred nine".