1347984815 has 16 divisors (see below), whose sum is σ = 1674492480. Its totient is φ = 1040497920.

The previous prime is 1347984719. The next prime is 1347984817. The reversal of 1347984815 is 5184897431.

It is a happy number.

It is not a de Polignac number, because 1347984815 - 2⁸ = 1347984559 is a prime.

It is a super-2 number, since 2×1347984815² = 3634126122941168450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1347984817) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 342710 + ... + 346620.

It is an arithmetic number, because the mean of its divisors is an integer number (104655780).

Almost surely, 2^1347984815 is an apocalyptic number.

1347984815 is a deficient number, since it is larger than the sum of its proper divisors (326507665).

1347984815 is a wasteful number, since it uses less digits than its factorization.

1347984815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6322.

The product of its digits is 967680, while the sum is 50.

The square root of 1347984815 is about 36714.9127058747. The cubic root of 1347984815 is about 1104.6592494371.

The spelling of 1347984815 in words is "one billion, three hundred forty-seven million, nine hundred eighty-four thousand, eight hundred fifteen".