7957975 has 6 divisors (see below), whose sum is σ = 9867920. Its totient is φ = 6366360.

The previous prime is 7957973. The next prime is 7957987. The reversal of 7957975 is 5797597.

It is not a de Polignac number, because 7957975 - 2¹ = 7957973 is a prime.

It is a super-2 number, since 2×7957975² = 126658732201250, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7957973) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 159135 + ... + 159184.

Almost surely, 2^7957975 is an apocalyptic number.

7957975 is a deficient number, since it is larger than the sum of its proper divisors (1909945).

7957975 is a wasteful number, since it uses less digits than its factorization.

7957975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318329 (or 318324 counting only the distinct ones).

The product of its digits is 694575, while the sum is 49.

The square root of 7957975 is about 2820.9883019963. The cubic root of 7957975 is about 199.6491766413.

The spelling of 7957975 in words is "seven million, nine hundred fifty-seven thousand, nine hundred seventy-five".