12870090 has 40 divisors (see below), whose sum is σ = 34608420. Its totient is φ = 3431808.

The previous prime is 12870089. The next prime is 12870101. The reversal of 12870090 is 9007821.

It can be written as a sum of positive squares in 2 ways, for example, as 12257001 + 613089 = 3501^2 + 783^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 7135 + ... + 8754.

Almost surely, 2^12870090 is an apocalyptic number.

12870090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12870090 is an abundant number, since it is smaller than the sum of its proper divisors (21738330).

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

12870090 is a wasteful number, since it uses less digits than its factorization.

12870090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15908 (or 15899 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 12870090 is about 3587.4907665386. The cubic root of 12870090 is about 234.3476095991.

The spelling of 12870090 in words is "twelve million, eight hundred seventy thousand, ninety".