609931957 has 2 divisors, whose sum is σ = 609931958. Its totient is φ = 609931956.

The previous prime is 609931937. The next prime is 609931981. The reversal of 609931957 is 759139906.

609931957 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 461433361 + 148498596 = 21481^2 + 12186^2 .

It is a cyclic number.

It is not a de Polignac number, because 609931957 - 2¹¹ = 609929909 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 609931957.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (609931937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 304965978 + 304965979.

It is an arithmetic number, because the mean of its divisors is an integer number (304965979).

Almost surely, 2^609931957 is an apocalyptic number.

It is an amenable number.

609931957 is a deficient number, since it is larger than the sum of its proper divisors (1).

609931957 is an equidigital number, since it uses as much as digits as its factorization.

609931957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 459270, while the sum is 49.

The square root of 609931957 is about 24696.8005417706. The cubic root of 609931957 is about 848.0610739247.

The spelling of 609931957 in words is "six hundred nine million, nine hundred thirty-one thousand, nine hundred fifty-seven".