1333978463 has 4 divisors (see below), whose sum is σ = 1335024360. Its totient is φ = 1332932568.

The previous prime is 1333978433. The next prime is 1333978493. The reversal of 1333978463 is 3648793331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3648793331 = 15331 ⋅238001.

It is an interprime number because it is at equal distance from previous prime (1333978433) and next prime (1333978493).

It is a cyclic number.

It is not a de Polignac number, because 1333978463 - 2¹⁴ = 1333962079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1333978433) 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, 521033 + ... + 523586.

It is an arithmetic number, because the mean of its divisors is an integer number (333756090).

Almost surely, 2^1333978463 is an apocalyptic number.

1333978463 is a deficient number, since it is larger than the sum of its proper divisors (1045897).

1333978463 is a wasteful number, since it uses less digits than its factorization.

1333978463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1045896.

The product of its digits is 979776, while the sum is 47.

The square root of 1333978463 is about 36523.6699004906. The cubic root of 1333978463 is about 1100.8199019448.

The spelling of 1333978463 in words is "one billion, three hundred thirty-three million, nine hundred seventy-eight thousand, four hundred sixty-three".