647362401 has 32 divisors (see below), whose sum is σ = 1006000128. Its totient is φ = 362663040.

The previous prime is 647362379. The next prime is 647362409. The reversal of 647362401 is 104263746.

It is a happy number.

It is not a de Polignac number, because 647362401 - 2⁵ = 647362369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (647362409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 237436 + ... + 240146.

It is an arithmetic number, because the mean of its divisors is an integer number (31437504).

Almost surely, 2^647362401 is an apocalyptic number.

It is an amenable number.

647362401 is a deficient number, since it is larger than the sum of its proper divisors (358637727).

647362401 is a wasteful number, since it uses less digits than its factorization.

647362401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2941.

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 647362401 is about 25443.3174134192. The cubic root of 647362401 is about 865.0658290195.

The spelling of 647362401 in words is "six hundred forty-seven million, three hundred sixty-two thousand, four hundred one".