1313947846 has 4 divisors (see below), whose sum is σ = 1970921772. Its totient is φ = 656973922.

The previous prime is 1313947819. The next prime is 1313947853. The reversal of 1313947846 is 6487493131.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 1313947796 and 1313947805.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 328486960 + ... + 328486963.

It is an arithmetic number, because the mean of its divisors is an integer number (492730443).

Almost surely, 2^1313947846 is an apocalyptic number.

1313947846 is a deficient number, since it is larger than the sum of its proper divisors (656973926).

1313947846 is an equidigital number, since it uses as much as digits as its factorization.

1313947846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656973925.

The product of its digits is 435456, while the sum is 46.

The square root of 1313947846 is about 36248.4185310201. The cubic root of 1313947846 is about 1095.2822318999.

The spelling of 1313947846 in words is "one billion, three hundred thirteen million, nine hundred forty-seven thousand, eight hundred forty-six".