470293721 has 2 divisors, whose sum is σ = 470293722. Its totient is φ = 470293720.

The previous prime is 470293697. The next prime is 470293727. The reversal of 470293721 is 127392074.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 435306496 + 34987225 = 20864^2 + 5915^2 .

It is a cyclic number.

It is not a de Polignac number, because 470293721 - 2¹⁴ = 470277337 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (470293727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 235146860 + 235146861.

It is an arithmetic number, because the mean of its divisors is an integer number (235146861).

Almost surely, 2^470293721 is an apocalyptic number.

It is an amenable number.

470293721 is a deficient number, since it is larger than the sum of its proper divisors (1).

470293721 is an equidigital number, since it uses as much as digits as its factorization.

470293721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 470293721 is about 21686.2565003737. The cubic root of 470293721 is about 777.6599387680.

The spelling of 470293721 in words is "four hundred seventy million, two hundred ninety-three thousand, seven hundred twenty-one".