7957642 has 16 divisors (see below), whose sum is σ = 14882112. Its totient is φ = 3100320.

The previous prime is 7957619. The next prime is 7957667. The reversal of 7957642 is 2467597.

It is a junction number, because it is equal to n+sod(n) for n = 7957595 and 7957604.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25683 + ... + 25990.

It is an arithmetic number, because the mean of its divisors is an integer number (930132).

Almost surely, 2^7957642 is an apocalyptic number.

7957642 is a deficient number, since it is larger than the sum of its proper divisors (6924470).

7957642 is a wasteful number, since it uses less digits than its factorization.

7957642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51693.

The product of its digits is 105840, while the sum is 40.

The square root of 7957642 is about 2820.9292795106. The cubic root of 7957642 is about 199.6463918415.

The spelling of 7957642 in words is "seven million, nine hundred fifty-seven thousand, six hundred forty-two".