1089617385 has 16 divisors (see below), whose sum is σ = 1753831296. Its totient is φ = 577648128.

The previous prime is 1089617371. The next prime is 1089617401. The reversal of 1089617385 is 5837169801.

It is not a de Polignac number, because 1089617385 - 2⁷ = 1089617257 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 214984 + ... + 219993.

It is an arithmetic number, because the mean of its divisors is an integer number (109614456).

Almost surely, 2^1089617385 is an apocalyptic number.

1089617385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1089617385 is a deficient number, since it is larger than the sum of its proper divisors (664213911).

1089617385 is a wasteful number, since it uses less digits than its factorization.

1089617385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435152.

The product of its (nonzero) digits is 362880, while the sum is 48.

The square root of 1089617385 is about 33009.3529927504. The cubic root of 1089617385 is about 1029.0220349423.

The spelling of 1089617385 in words is "one billion, eighty-nine million, six hundred seventeen thousand, three hundred eighty-five".