1347891970 has 8 divisors (see below), whose sum is σ = 2426205564. Its totient is φ = 539156784.

The previous prime is 1347891967. The next prime is 1347891973. The reversal of 1347891970 is 791987431.

It is an interprime number because it is at equal distance from previous prime (1347891967) and next prime (1347891973).

It can be written as a sum of positive squares in 2 ways, for example, as 1346816601 + 1075369 = 36699^2 + 1037^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1347891973) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67394589 + ... + 67394608.

Almost surely, 2^1347891970 is an apocalyptic number.

1347891970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1347891970 is a deficient number, since it is larger than the sum of its proper divisors (1078313594).

1347891970 is a wasteful number, since it uses less digits than its factorization.

1347891970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134789204.

The product of its (nonzero) digits is 381024, while the sum is 49.

The square root of 1347891970 is about 36713.6482796248. The cubic root of 1347891970 is about 1104.6338870241.

The spelling of 1347891970 in words is "one billion, three hundred forty-seven million, eight hundred ninety-one thousand, nine hundred seventy".