1343758987 has 8 divisors (see below), whose sum is σ = 1383250176. Its totient is φ = 1304642472.

The previous prime is 1343758981. The next prime is 1343758991. The reversal of 1343758987 is 7898573431.

It is a happy number.

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 1343758987 - 2²⁷ = 1209541259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1343758981) 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, 86383 + ... + 100744.

It is an arithmetic number, because the mean of its divisors is an integer number (172906272).

Almost surely, 2^1343758987 is an apocalyptic number.

1343758987 is a deficient number, since it is larger than the sum of its proper divisors (39491189).

1343758987 is a wasteful number, since it uses less digits than its factorization.

1343758987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187337.

The product of its digits is 5080320, while the sum is 55.

The square root of 1343758987 is about 36657.3183279956. The cubic root of 1343758987 is about 1103.5037006771.

The spelling of 1343758987 in words is "one billion, three hundred forty-three million, seven hundred fifty-eight thousand, nine hundred eighty-seven".