7966542 has 16 divisors (see below), whose sum is σ = 15960960. Its totient is φ = 2650872.

The previous prime is 7966499. The next prime is 7966549. The reversal of 7966542 is 2456697.

It is a self number, because there is not a number n which added to its sum of digits gives 7966542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7966549) 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, 5463 + ... + 6765.

It is an arithmetic number, because the mean of its divisors is an integer number (997560).

Almost surely, 2^7966542 is an apocalyptic number.

7966542 is an abundant number, since it is smaller than the sum of its proper divisors (7994418).

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

7966542 is a wasteful number, since it uses less digits than its factorization.

7966542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2327.

The product of its digits is 90720, while the sum is 39.

The square root of 7966542 is about 2822.5063330310. The cubic root of 7966542 is about 199.7207937340.

The spelling of 7966542 in words is "seven million, nine hundred sixty-six thousand, five hundred forty-two".