607963921 has 2 divisors, whose sum is σ = 607963922. Its totient is φ = 607963920.

The previous prime is 607963913. The next prime is 607963927. The reversal of 607963921 is 129369706.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 607080321 + 883600 = 24639^2 + 940^2 .

It is a cyclic number.

It is not a de Polignac number, because 607963921 - 2³ = 607963913 is a prime.

It is not a weakly prime, because it can be changed into another prime (607963927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 303981960 + 303981961.

It is an arithmetic number, because the mean of its divisors is an integer number (303981961).

Almost surely, 2^607963921 is an apocalyptic number.

It is an amenable number.

607963921 is a deficient number, since it is larger than the sum of its proper divisors (1).

607963921 is an equidigital number, since it uses as much as digits as its factorization.

607963921 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 122472, while the sum is 43.

The square root of 607963921 is about 24656.9244026906. The cubic root of 607963921 is about 847.1479594714.

The spelling of 607963921 in words is "six hundred seven million, nine hundred sixty-three thousand, nine hundred twenty-one".