7631985 has 8 divisors (see below), whose sum is σ = 12211200. Its totient is φ = 4070384.

The previous prime is 7631971. The next prime is 7631999. The reversal of 7631985 is 5891367.

It is an interprime number because it is at equal distance from previous prime (7631971) and next prime (7631999).

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

It is a cyclic number.

It is not a de Polignac number, because 7631985 - 2⁴ = 7631969 is a prime.

It is a super-3 number, since 3×7631985³ (a number of 22 digits) contains 333 as substring.

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, 254385 + ... + 254414.

It is an arithmetic number, because the mean of its divisors is an integer number (1526400).

Almost surely, 2^7631985 is an apocalyptic number.

It is an amenable number.

7631985 is a deficient number, since it is larger than the sum of its proper divisors (4579215).

7631985 is a wasteful number, since it uses less digits than its factorization.

7631985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508807.

The product of its digits is 45360, while the sum is 39.

The square root of 7631985 is about 2762.6047491453. The cubic root of 7631985 is about 196.8849423047.

The spelling of 7631985 in words is "seven million, six hundred thirty-one thousand, nine hundred eighty-five".