11907870 has 64 divisors (see below), whose sum is σ = 32417280. Its totient is φ = 2775168.

The previous prime is 11907869. The next prime is 11907877. The reversal of 11907870 is 7870911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11907877) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6607 + ... + 8213.

It is an arithmetic number, because the mean of its divisors is an integer number (506520).

Almost surely, 2^11907870 is an apocalyptic number.

11907870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11907870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16208640).

11907870 is an abundant number, since it is smaller than the sum of its proper divisors (20509410).

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

11907870 is a wasteful number, since it uses less digits than its factorization.

11907870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1649.

The product of its (nonzero) digits is 3528, while the sum is 33.

The square root of 11907870 is about 3450.7781731082. The cubic root of 11907870 is about 228.3554397526.

The spelling of 11907870 in words is "eleven million, nine hundred seven thousand, eight hundred seventy".