1089870537 has 16 divisors (see below), whose sum is σ = 1664732160. Its totient is φ = 621291792.

The previous prime is 1089870521. The next prime is 1089870539. The reversal of 1089870537 is 7350789801.

It is not a de Polignac number, because 1089870537 - 2⁴ = 1089870521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1089870539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53133 + ... + 70730.

It is an arithmetic number, because the mean of its divisors is an integer number (104045760).

Almost surely, 2^1089870537 is an apocalyptic number.

It is an amenable number.

1089870537 is a deficient number, since it is larger than the sum of its proper divisors (574861623).

1089870537 is a wasteful number, since it uses less digits than its factorization.

1089870537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124292.

The product of its (nonzero) digits is 423360, while the sum is 48.

The square root of 1089870537 is about 33013.1873196152. The cubic root of 1089870537 is about 1029.1017200435.

The spelling of 1089870537 in words is "one billion, eighty-nine million, eight hundred seventy thousand, five hundred thirty-seven".