704215121 has 2 divisors, whose sum is σ = 704215122. Its totient is φ = 704215120.

The previous prime is 704215103. The next prime is 704215151. The reversal of 704215121 is 121512407.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 556252225 + 147962896 = 23585^2 + 12164^2 .

It is a cyclic number.

It is not a de Polignac number, because 704215121 - 2¹⁰ = 704214097 is a prime.

It is not a weakly prime, because it can be changed into another prime (704215151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 352107560 + 352107561.

It is an arithmetic number, because the mean of its divisors is an integer number (352107561).

Almost surely, 2^704215121 is an apocalyptic number.

It is an amenable number.

704215121 is a deficient number, since it is larger than the sum of its proper divisors (1).

704215121 is an equidigital number, since it uses as much as digits as its factorization.

704215121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 704215121 is about 26537.0518520803. The cubic root of 704215121 is about 889.6826377616.

Adding to 704215121 its reverse (121512407), we get a palindrome (825727528).

The spelling of 704215121 in words is "seven hundred four million, two hundred fifteen thousand, one hundred twenty-one".