470390813 has 2 divisors, whose sum is σ = 470390814. Its totient is φ = 470390812.

The previous prime is 470390761. The next prime is 470390831. The reversal of 470390813 is 318093074.

Together with next prime (470390831) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 280998169 + 189392644 = 16763^2 + 13762^2 .

It is a cyclic number.

It is not a de Polignac number, because 470390813 - 2⁶ = 470390749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (470300813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 235195406 + 235195407.

It is an arithmetic number, because the mean of its divisors is an integer number (235195407).

Almost surely, 2^470390813 is an apocalyptic number.

It is an amenable number.

470390813 is a deficient number, since it is larger than the sum of its proper divisors (1).

470390813 is an equidigital number, since it uses as much as digits as its factorization.

470390813 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 470390813 is about 21688.4949454774. The cubic root of 470390813 is about 777.7134509740.

The spelling of 470390813 in words is "four hundred seventy million, three hundred ninety thousand, eight hundred thirteen".