609803972 has 6 divisors (see below), whose sum is σ = 1067156958. Its totient is φ = 304901984.

The previous prime is 609803969. The next prime is 609804017. The reversal of 609803972 is 279308906.

It can be written as a sum of positive squares in only one way, i.e., 553943296 + 55860676 = 23536^2 + 7474^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76225493 + ... + 76225500.

It is an arithmetic number, because the mean of its divisors is an integer number (177859493).

Almost surely, 2^609803972 is an apocalyptic number.

It is an amenable number.

609803972 is a deficient number, since it is larger than the sum of its proper divisors (457352986).

609803972 is a wasteful number, since it uses less digits than its factorization.

609803972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152450997 (or 152450995 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 609803972 is about 24694.2092807200. The cubic root of 609803972 is about 848.0017521769.

The spelling of 609803972 in words is "six hundred nine million, eight hundred three thousand, nine hundred seventy-two".