11957970 has 32 divisors (see below), whose sum is σ = 30388608. Its totient is φ = 3001088.

The previous prime is 11957969. The next prime is 11957977. The reversal of 11957970 is 7975911.

It is not an unprimeable number, because it can be changed into a prime (11957977) 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, 11214 + ... + 12233.

It is an arithmetic number, because the mean of its divisors is an integer number (949644).

Almost surely, 2^11957970 is an apocalyptic number.

11957970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11957970 is an abundant number, since it is smaller than the sum of its proper divisors (18430638).

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

11957970 is a wasteful number, since it uses less digits than its factorization.

11957970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23474.

The product of its (nonzero) digits is 19845, while the sum is 39.

The square root of 11957970 is about 3458.0297858752. The cubic root of 11957970 is about 228.6752450644.

The spelling of 11957970 in words is "eleven million, nine hundred fifty-seven thousand, nine hundred seventy".