407649653 has 2 divisors, whose sum is σ = 407649654. Its totient is φ = 407649652.

The previous prime is 407649623. The next prime is 407649661. The reversal of 407649653 is 356946704.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 367795684 + 39853969 = 19178^2 + 6313^2 .

It is a cyclic number.

It is not a de Polignac number, because 407649653 - 2¹⁶ = 407584117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (407649623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203824826 + 203824827.

It is an arithmetic number, because the mean of its divisors is an integer number (203824827).

Almost surely, 2^407649653 is an apocalyptic number.

It is an amenable number.

407649653 is a deficient number, since it is larger than the sum of its proper divisors (1).

407649653 is an equidigital number, since it uses as much as digits as its factorization.

407649653 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 544320, while the sum is 44.

The square root of 407649653 is about 20190.3356336639. The cubic root of 407649653 is about 741.4735993918.

The spelling of 407649653 in words is "four hundred seven million, six hundred forty-nine thousand, six hundred fifty-three".