7981485 has 8 divisors (see below), whose sum is σ = 12770400. Its totient is φ = 4256784.

The previous prime is 7981481. The next prime is 7981487. The reversal of 7981485 is 5841897.

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

It is not a de Polignac number, because 7981485 - 2² = 7981481 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7981481) 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, 266035 + ... + 266064.

It is an arithmetic number, because the mean of its divisors is an integer number (1596300).

Almost surely, 2^7981485 is an apocalyptic number.

It is an amenable number.

7981485 is a deficient number, since it is larger than the sum of its proper divisors (4788915).

7981485 is a wasteful number, since it uses less digits than its factorization.

7981485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532107.

The product of its digits is 80640, while the sum is 42.

The square root of 7981485 is about 2825.1522082890. The cubic root of 7981485 is about 199.8455891505.

It can be divided in two parts, 798 and 1485, that multiplied together give a triangular number (1185030 = T₁₅₃₉).

The spelling of 7981485 in words is "seven million, nine hundred eighty-one thousand, four hundred eighty-five".