609971742 has 16 divisors (see below), whose sum is σ = 1355492880. Its totient is φ = 203323896.

The previous prime is 609971711. The next prime is 609971743. The reversal of 609971742 is 247179906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (609971743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5647833 + ... + 5647940.

It is an arithmetic number, because the mean of its divisors is an integer number (84718305).

Almost surely, 2^609971742 is an apocalyptic number.

609971742 is an abundant number, since it is smaller than the sum of its proper divisors (745521138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

609971742 is a wasteful number, since it uses less digits than its factorization.

609971742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11295784 (or 11295778 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 45.

The square root of 609971742 is about 24697.6059973431. The cubic root of 609971742 is about 848.0795127991.

It can be divided in two parts, 6099 and 71742, that added together give a square (77841 = 279²).

The spelling of 609971742 in words is "six hundred nine million, nine hundred seventy-one thousand, seven hundred forty-two".