7971495 has 48 divisors (see below), whose sum is σ = 15252480. Its totient is φ = 3481920.

The previous prime is 7971493. The next prime is 7971499. The reversal of 7971495 is 5941797.

It is a happy number.

It is not a de Polignac number, because 7971495 - 2¹ = 7971493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7971493) 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 47 ways as a sum of consecutive naturals, for example, 100866 + ... + 100944.

It is an arithmetic number, because the mean of its divisors is an integer number (317760).

Almost surely, 2^7971495 is an apocalyptic number.

7971495 is a deficient number, since it is larger than the sum of its proper divisors (7280985).

7971495 is a wasteful number, since it uses less digits than its factorization.

7971495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156 (or 125 counting only the distinct ones).

The product of its digits is 79380, while the sum is 42.

The square root of 7971495 is about 2823.3836083678. The cubic root of 7971495 is about 199.7621756433.

The spelling of 7971495 in words is "seven million, nine hundred seventy-one thousand, four hundred ninety-five".