407231897 has 2 divisors, whose sum is σ = 407231898. Its totient is φ = 407231896.

The previous prime is 407231863. The next prime is 407231911. The reversal of 407231897 is 798132704.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 396368281 + 10863616 = 19909^2 + 3296^2 .

It is a cyclic number.

It is not a de Polignac number, because 407231897 - 2¹² = 407227801 is a prime.

It is not a weakly prime, because it can be changed into another prime (407230897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203615948 + 203615949.

It is an arithmetic number, because the mean of its divisors is an integer number (203615949).

Almost surely, 2^407231897 is an apocalyptic number.

It is an amenable number.

407231897 is a deficient number, since it is larger than the sum of its proper divisors (1).

407231897 is an equidigital number, since it uses as much as digits as its factorization.

407231897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 407231897 is about 20179.9875371617. The cubic root of 407231897 is about 741.2202274792.

The spelling of 407231897 in words is "four hundred seven million, two hundred thirty-one thousand, eight hundred ninety-seven".