648927201 has 32 divisors (see below), whose sum is σ = 964784128. Its totient is φ = 385378560.

The previous prime is 648927161. The next prime is 648927269. The reversal of 648927201 is 102729846.

It is not a de Polignac number, because 648927201 - 2⁶ = 648927137 is a prime.

It is a super-2 number, since 2×648927201² = 842213024395388802, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 648927201.

It is not an unprimeable number, because it can be changed into a prime (648927401) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 181491 + ... + 185031.

It is an arithmetic number, because the mean of its divisors is an integer number (30149504).

Almost surely, 2^648927201 is an apocalyptic number.

It is an amenable number.

648927201 is a deficient number, since it is larger than the sum of its proper divisors (315856927).

648927201 is a wasteful number, since it uses less digits than its factorization.

648927201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3721.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 648927201 is about 25474.0495602878. The cubic root of 648927201 is about 865.7622785855.

The spelling of 648927201 in words is "six hundred forty-eight million, nine hundred twenty-seven thousand, two hundred one".