7780963 has 2 divisors, whose sum is σ = 7780964. Its totient is φ = 7780962.

The previous prime is 7780921. The next prime is 7780999. The reversal of 7780963 is 3690877.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7780963 - 2¹³ = 7772771 is a prime.

7780963 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (7787963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3890481 + 3890482.

It is an arithmetic number, because the mean of its divisors is an integer number (3890482).

Almost surely, 2^7780963 is an apocalyptic number.

7780963 is a deficient number, since it is larger than the sum of its proper divisors (1).

7780963 is an equidigital number, since it uses as much as digits as its factorization.

7780963 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 7780963 is about 2789.4377569682. The cubic root of 7780963 is about 198.1577747993.

The spelling of 7780963 in words is "seven million, seven hundred eighty thousand, nine hundred sixty-three".