1089629837 has 4 divisors (see below), whose sum is σ = 1090333020. Its totient is φ = 1088926656.

The previous prime is 1089629813. The next prime is 1089629843. The reversal of 1089629837 is 7389269801.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 237807241 + 851822596 = 15421^2 + 29186^2 .

It is a cyclic number.

It is not a de Polignac number, because 1089629837 - 2²⁰ = 1088581261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1089629887) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 349262 + ... + 352367.

It is an arithmetic number, because the mean of its divisors is an integer number (272583255).

Almost surely, 2^1089629837 is an apocalyptic number.

It is an amenable number.

1089629837 is a deficient number, since it is larger than the sum of its proper divisors (703183).

1089629837 is an equidigital number, since it uses as much as digits as its factorization.

1089629837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 703182.

The product of its (nonzero) digits is 1306368, while the sum is 53.

The square root of 1089629837 is about 33009.5416054207. The cubic root of 1089629837 is about 1029.0259547689.

The spelling of 1089629837 in words is "one billion, eighty-nine million, six hundred twenty-nine thousand, eight hundred thirty-seven".