1089579975 has 48 divisors (see below), whose sum is σ = 1971540480. Its totient is φ = 526579200.

The previous prime is 1089579923. The next prime is 1089580067. The reversal of 1089579975 is 5799759801.

It is not a de Polignac number, because 1089579975 - 2¹⁰ = 1089578951 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 276066 + ... + 279984.

It is an arithmetic number, because the mean of its divisors is an integer number (41073760).

Almost surely, 2^1089579975 is an apocalyptic number.

1089579975 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1089579975 is a deficient number, since it is larger than the sum of its proper divisors (881960505).

1089579975 is a wasteful number, since it uses less digits than its factorization.

1089579975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4280 (or 4275 counting only the distinct ones).

The product of its (nonzero) digits is 7144200, while the sum is 60.

The square root of 1089579975 is about 33008.7863303091. The cubic root of 1089579975 is about 1029.0102582840.

The spelling of 1089579975 in words is "one billion, eighty-nine million, five hundred seventy-nine thousand, nine hundred seventy-five".