7871970 has 16 divisors (see below), whose sum is σ = 18892800. Its totient is φ = 2099184.

The previous prime is 7871953. The next prime is 7871971. The reversal of 7871970 is 791787.

It is a happy number.

7871970 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7871971) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131170 + ... + 131229.

It is an arithmetic number, because the mean of its divisors is an integer number (1180800).

Almost surely, 2^7871970 is an apocalyptic number.

7871970 is an abundant number, since it is smaller than the sum of its proper divisors (11020830).

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

7871970 is a wasteful number, since it uses less digits than its factorization.

7871970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262409.

The product of its (nonzero) digits is 24696, while the sum is 39.

The square root of 7871970 is about 2805.7031204317. The cubic root of 7871970 is about 198.9273406277.

The spelling of 7871970 in words is "seven million, eight hundred seventy-one thousand, nine hundred seventy".