1089970 has 32 divisors (see below), whose sum is σ = 2343168. Its totient is φ = 356928.

The previous prime is 1089967. The next prime is 1090003. The reversal of 1089970 is 799801.

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, 1272 + ... + 1948.

It is an arithmetic number, because the mean of its divisors is an integer number (73224).

2^1089970 is an apocalyptic number.

1089970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1089970 is an abundant number, since it is smaller than the sum of its proper divisors (1253198).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1089970 is a wasteful number, since it uses less digits than its factorization.

1089970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 714.

The product of its (nonzero) digits is 4536, while the sum is 34.

The square root of 1089970 is about 1044.0162833979. The cubic root of 1089970 is about 102.9133024811.

Subtracting from 1089970 its sum of digits (34), we obtain a square (1089936 = 1044²).

The spelling of 1089970 in words is "one million, eighty-nine thousand, nine hundred seventy".