470889997 has 2 divisors, whose sum is σ = 470889998. Its totient is φ = 470889996.

The previous prime is 470889973. The next prime is 470890099. The reversal of 470889997 is 799988074.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 324504196 + 146385801 = 18014^2 + 12099^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-470889997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (470889967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 235444998 + 235444999.

It is an arithmetic number, because the mean of its divisors is an integer number (235444999).

Almost surely, 2^470889997 is an apocalyptic number.

It is an amenable number.

470889997 is a deficient number, since it is larger than the sum of its proper divisors (1).

470889997 is an equidigital number, since it uses as much as digits as its factorization.

470889997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9144576, while the sum is 61.

The square root of 470889997 is about 21699.9999308756. Note that the first 4 decimals coincide. The cubic root of 470889997 is about 777.9884597914.

The spelling of 470889997 in words is "four hundred seventy million, eight hundred eighty-nine thousand, nine hundred ninety-seven".