7681995 has 12 divisors (see below), whose sum is σ = 13315536. Its totient is φ = 4097040.

The previous prime is 7681991. The next prime is 7682021. The reversal of 7681995 is 5991867.

It is not a de Polignac number, because 7681995 - 2² = 7681991 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 170711 = 7681995 / (7 + 6 + 8 + 1 + 9 + 9 + 5).

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 7681995.

It is not an unprimeable number, because it can be changed into a prime (7681991) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 85311 + ... + 85400.

It is an arithmetic number, because the mean of its divisors is an integer number (1109628).

Almost surely, 2^7681995 is an apocalyptic number.

7681995 is a deficient number, since it is larger than the sum of its proper divisors (5633541).

7681995 is a wasteful number, since it uses less digits than its factorization.

7681995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170722 (or 170719 counting only the distinct ones).

The product of its digits is 136080, while the sum is 45.

The square root of 7681995 is about 2771.6412105466. The cubic root of 7681995 is about 197.3140481240.

The spelling of 7681995 in words is "seven million, six hundred eighty-one thousand, nine hundred ninety-five".