7161663 has 4 divisors (see below), whose sum is σ = 9548888. Its totient is φ = 4774440.

The previous prime is 7161653. The next prime is 7161667. The reversal of 7161663 is 3661617.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 7161663 - 2⁶ = 7161599 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7161663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7161667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1193608 + ... + 1193613.

It is an arithmetic number, because the mean of its divisors is an integer number (2387222).

Almost surely, 2^7161663 is an apocalyptic number.

7161663 is a deficient number, since it is larger than the sum of its proper divisors (2387225).

7161663 is a wasteful number, since it uses less digits than its factorization.

7161663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2387224.

The product of its digits is 4536, while the sum is 30.

The square root of 7161663 is about 2676.1283601502. The cubic root of 7161663 is about 192.7545449192.

The spelling of 7161663 in words is "seven million, one hundred sixty-one thousand, six hundred sixty-three".