7975542 has 32 divisors (see below), whose sum is σ = 16410240. Its totient is φ = 2583360.

The previous prime is 7975531. The next prime is 7975543. The reversal of 7975542 is 2455797.

It is a self number, because there is not a number n which added to its sum of digits gives 7975542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7975543) 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, 57309 + ... + 57447.

It is an arithmetic number, because the mean of its divisors is an integer number (512820).

Almost surely, 2^7975542 is an apocalyptic number.

7975542 is an abundant number, since it is smaller than the sum of its proper divisors (8434698).

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

7975542 is a wasteful number, since it uses less digits than its factorization.

7975542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348.

The product of its digits is 88200, while the sum is 39.

The square root of 7975542 is about 2824.1002106866. The cubic root of 7975542 is about 199.7959752737.

It can be divided in two parts, 79755 and 42, that added together give a palindrome (79797).

The spelling of 7975542 in words is "seven million, nine hundred seventy-five thousand, five hundred forty-two".