7161648 has 80 divisors (see below), whose sum is σ = 20832000. Its totient is φ = 2103552.

The previous prime is 7161629. The next prime is 7161653. The reversal of 7161648 is 8461617.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14103 + ... + 14601.

It is an arithmetic number, because the mean of its divisors is an integer number (260400).

Almost surely, 2^7161648 is an apocalyptic number.

7161648 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7161648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10416000).

7161648 is an abundant number, since it is smaller than the sum of its proper divisors (13670352).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7161648 is a wasteful number, since it uses less digits than its factorization.

7161648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546 (or 540 counting only the distinct ones).

The product of its digits is 8064, while the sum is 33.

The square root of 7161648 is about 2676.1255575925. The cubic root of 7161648 is about 192.7544103452.

The spelling of 7161648 in words is "seven million, one hundred sixty-one thousand, six hundred forty-eight".