653466970 has 64 divisors (see below), whose sum is σ = 1291471776. Its totient is φ = 236620800.

The previous prime is 653466959. The next prime is 653466971. The reversal of 653466970 is 79664356.

It is a Cunningham number, because it is equal to 25563²+1.

It can be written as a sum of positive squares in 16 ways, for example, as 1022121 + 652444849 = 1011^2 + 25543^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 653466970.

It is not an unprimeable number, because it can be changed into a prime (653466971) 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, 2061252 + ... + 2061568.

Almost surely, 2^653466970 is an apocalyptic number.

653466970 is a deficient number, since it is larger than the sum of its proper divisors (638004806).

653466970 is a wasteful number, since it uses less digits than its factorization.

653466970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 595.

The product of its (nonzero) digits is 816480, while the sum is 46.

The square root of 653466970 is about 25563.0000195595. Note that the first 4 decimals coincide. The cubic root of 653466970 is about 867.7764905837.

The spelling of 653466970 in words is "six hundred fifty-three million, four hundred sixty-six thousand, nine hundred seventy".