7716961 has 6 divisors (see below), whose sum is σ = 8976930. Its totient is φ = 6614496.

The previous prime is 7716953. The next prime is 7716967. The reversal of 7716961 is 1696177.

It can be written as a sum of positive squares in only one way, i.e., 6350400 + 1366561 = 2520^2 + 1169^2 .

It is not a de Polignac number, because 7716961 - 2³ = 7716953 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 7716961.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7716967) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 78696 + ... + 78793.

It is an arithmetic number, because the mean of its divisors is an integer number (1496155).

Almost surely, 2^7716961 is an apocalyptic number.

It is an amenable number.

7716961 is a deficient number, since it is larger than the sum of its proper divisors (1259969).

7716961 is a wasteful number, since it uses less digits than its factorization.

7716961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157503 (or 157496 counting only the distinct ones).

The product of its digits is 15876, while the sum is 37.

The square root of 7716961 is about 2777.9418640425. The cubic root of 7716961 is about 197.6129653373.

The spelling of 7716961 in words is "seven million, seven hundred sixteen thousand, nine hundred sixty-one".