1093928386 has 4 divisors (see below), whose sum is σ = 1640892582. Its totient is φ = 546964192.

The previous prime is 1093928383. The next prime is 1093928387. The reversal of 1093928386 is 6838293901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6838293901 = 139 ⋅49196359.

It can be written as a sum of positive squares in only one way, i.e., 1071318361 + 22610025 = 32731^2 + 4755^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (1093928383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 273482095 + ... + 273482098.

Almost surely, 2^1093928386 is an apocalyptic number.

1093928386 is a deficient number, since it is larger than the sum of its proper divisors (546964196).

1093928386 is an equidigital number, since it uses as much as digits as its factorization.

1093928386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546964195.

The product of its (nonzero) digits is 559872, while the sum is 49.

The square root of 1093928386 is about 33074.5882211706. The cubic root of 1093928386 is about 1030.3773355910.

The spelling of 1093928386 in words is "one billion, ninety-three million, nine hundred twenty-eight thousand, three hundred eighty-six".