470365781 has 2 divisors, whose sum is σ = 470365782. Its totient is φ = 470365780.

The previous prime is 470365751. The next prime is 470365789. The reversal of 470365781 is 187563074.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 401641681 + 68724100 = 20041^2 + 8290^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-470365781 is a prime.

It is a super-2 number, since 2×470365781² = 442487935871479922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (470365789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 235182890 + 235182891.

It is an arithmetic number, because the mean of its divisors is an integer number (235182891).

Almost surely, 2^470365781 is an apocalyptic number.

It is an amenable number.

470365781 is a deficient number, since it is larger than the sum of its proper divisors (1).

470365781 is an equidigital number, since it uses as much as digits as its factorization.

470365781 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 141120, while the sum is 41.

The square root of 470365781 is about 21687.9178576460. The cubic root of 470365781 is about 777.6996553046.

The spelling of 470365781 in words is "four hundred seventy million, three hundred sixty-five thousand, seven hundred eighty-one".