1392816893 has 8 divisors (see below), whose sum is σ = 1500584736. Its totient is φ = 1285138800.

The previous prime is 1392816883. The next prime is 1392816947. The reversal of 1392816893 is 3986182931.

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 1392816893 - 2⁶ = 1392816829 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 (1392816833) 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, 11738 + ... + 54068.

It is an arithmetic number, because the mean of its divisors is an integer number (187573092).

Almost surely, 2^1392816893 is an apocalyptic number.

1392816893 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1392816893 is a deficient number, since it is larger than the sum of its proper divisors (107767843).

1392816893 is a wasteful number, since it uses less digits than its factorization.

1392816893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44875.

The product of its digits is 559872, while the sum is 50.

The square root of 1392816893 is about 37320.4621220049. The cubic root of 1392816893 is about 1116.7724076100.

The spelling of 1392816893 in words is "one billion, three hundred ninety-two million, eight hundred sixteen thousand, eight hundred ninety-three".