1090008605 has 8 divisors (see below), whose sum is σ = 1494868992. Its totient is φ = 747434448.

The previous prime is 1090008599. The next prime is 1090008629. The reversal of 1090008605 is 5068000901.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1090008605 - 2¹⁴ = 1089992221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15571517 + ... + 15571586.

It is an arithmetic number, because the mean of its divisors is an integer number (186858624).

Almost surely, 2^1090008605 is an apocalyptic number.

It is an amenable number.

1090008605 is a deficient number, since it is larger than the sum of its proper divisors (404860387).

1090008605 is an equidigital number, since it uses as much as digits as its factorization.

1090008605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31143115.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 1090008605 is about 33015.2783571485. The cubic root of 1090008605 is about 1029.1451747512.

The spelling of 1090008605 in words is "one billion, ninety million, eight thousand, six hundred five".