780953 has 2 divisors, whose sum is σ = 780954. Its totient is φ = 780952.

The previous prime is 780931. The next prime is 780961. The reversal of 780953 is 359087.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 458329 + 322624 = 677^2 + 568^2 .

It is a cyclic number.

It is not a de Polignac number, because 780953 - 2⁶ = 780889 is a prime.

It is not a weakly prime, because it can be changed into another prime (780973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 390476 + 390477.

It is an arithmetic number, because the mean of its divisors is an integer number (390477).

2⁷⁸⁰⁹⁵³ is an apocalyptic number.

It is an amenable number.

780953 is a deficient number, since it is larger than the sum of its proper divisors (1).

780953 is an equidigital number, since it uses as much as digits as its factorization.

780953 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 780953 is about 883.7154519414. The cubic root of 780953 is about 92.0891149750.

The spelling of 780953 in words is "seven hundred eighty thousand, nine hundred fifty-three".