7958985 has 8 divisors (see below), whose sum is σ = 12734400. Its totient is φ = 4244784.

The previous prime is 7958983. The next prime is 7958987. The reversal of 7958985 is 5898597.

It is an interprime number because it is at equal distance from previous prime (7958983) and next prime (7958987).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7958985 - 2¹ = 7958983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7958983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 265285 + ... + 265314.

It is an arithmetic number, because the mean of its divisors is an integer number (1591800).

Almost surely, 2^7958985 is an apocalyptic number.

It is an amenable number.

7958985 is a deficient number, since it is larger than the sum of its proper divisors (4775415).

7958985 is a wasteful number, since it uses less digits than its factorization.

7958985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530607.

The product of its digits is 907200, while the sum is 51.

The square root of 7958985 is about 2821.1673115928. The cubic root of 7958985 is about 199.6576225562.

The spelling of 7958985 in words is "seven million, nine hundred fifty-eight thousand, nine hundred eighty-five".