406907387 has 2 divisors, whose sum is σ = 406907388. Its totient is φ = 406907386.

The previous prime is 406907351. The next prime is 406907407. The reversal of 406907387 is 783709604.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 406907387 - 2¹² = 406903291 is a prime.

It is not a weakly prime, because it can be changed into another prime (406904387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203453693 + 203453694.

It is an arithmetic number, because the mean of its divisors is an integer number (203453694).

Almost surely, 2^406907387 is an apocalyptic number.

406907387 is a deficient number, since it is larger than the sum of its proper divisors (1).

406907387 is an equidigital number, since it uses as much as digits as its factorization.

406907387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 254016, while the sum is 44.

The square root of 406907387 is about 20171.9455432539. The cubic root of 406907387 is about 741.0232903064.

The spelling of 406907387 in words is "four hundred six million, nine hundred seven thousand, three hundred eighty-seven".