1093787428 has 12 divisors (see below), whose sum is σ = 1914368652. Its totient is φ = 546824960.

The previous prime is 1093787419. The next prime is 1093787441. The reversal of 1093787428 is 8247873901.

It can be written as a sum of positive squares in 2 ways, for example, as 209438784 + 884348644 = 14472^2 + 29738^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39048 + ... + 60928.

It is an arithmetic number, because the mean of its divisors is an integer number (159530721).

Almost surely, 2^1093787428 is an apocalyptic number.

It is an amenable number.

1093787428 is a deficient number, since it is larger than the sum of its proper divisors (820581224).

1093787428 is a wasteful number, since it uses less digits than its factorization.

1093787428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34382 (or 34380 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 49.

The square root of 1093787428 is about 33072.4572416384. The cubic root of 1093787428 is about 1030.3330773107. Note that the first 3 decimals are identical.

The spelling of 1093787428 in words is "one billion, ninety-three million, seven hundred eighty-seven thousand, four hundred twenty-eight".