7980761 has 2 divisors, whose sum is σ = 7980762. Its totient is φ = 7980760.

The previous prime is 7980751. The next prime is 7980787. The reversal of 7980761 is 1670897.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6990736 + 990025 = 2644^2 + 995^2 .

It is a cyclic number.

It is not a de Polignac number, because 7980761 - 2⁶ = 7980697 is a prime.

It is a super-2 number, since 2×7980761² = 127385092278242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7980751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3990380 + 3990381.

It is an arithmetic number, because the mean of its divisors is an integer number (3990381).

Almost surely, 2^7980761 is an apocalyptic number.

It is an amenable number.

7980761 is a deficient number, since it is larger than the sum of its proper divisors (1).

7980761 is an equidigital number, since it uses as much as digits as its factorization.

7980761 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21168, while the sum is 38.

The square root of 7980761 is about 2825.0240706939. The cubic root of 7980761 is about 199.8395463075.

The spelling of 7980761 in words is "seven million, nine hundred eighty thousand, seven hundred sixty-one".