1346696391 has 16 divisors (see below), whose sum is σ = 1875928320. Its totient is φ = 857725440.

The previous prime is 1346696387. The next prime is 1346696399. The reversal of 1346696391 is 1936966431.

It is not a de Polignac number, because 1346696391 - 2² = 1346696387 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1346696391.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1346696399) 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, 47911 + ... + 70631.

It is an arithmetic number, because the mean of its divisors is an integer number (117245520).

Almost surely, 2^1346696391 is an apocalyptic number.

1346696391 is a deficient number, since it is larger than the sum of its proper divisors (529231929).

1346696391 is a wasteful number, since it uses less digits than its factorization.

1346696391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23606.

The product of its digits is 629856, while the sum is 48.

The square root of 1346696391 is about 36697.3621804075. The cubic root of 1346696391 is about 1104.3071873133.

The spelling of 1346696391 in words is "one billion, three hundred forty-six million, six hundred ninety-six thousand, three hundred ninety-one".