1093977720 has 96 divisors (see below), whose sum is σ = 3878662320. Its totient is φ = 265205760.

The previous prime is 1093977719. The next prime is 1093977769. The reversal of 1093977720 is 277793901.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 134169 + ... + 142088.

Almost surely, 2^1093977720 is an apocalyptic number.

1093977720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1093977720 is an abundant number, since it is smaller than the sum of its proper divisors (2784684600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1093977720 is a wasteful number, since it uses less digits than its factorization.

1093977720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276285 (or 276278 counting only the distinct ones).

The product of its (nonzero) digits is 166698, while the sum is 45.

The square root of 1093977720 is about 33075.3340119189. The cubic root of 1093977720 is about 1030.3928246827.

The spelling of 1093977720 in words is "one billion, ninety-three million, nine hundred seventy-seven thousand, seven hundred twenty".