197494738 has 32 divisors (see below), whose sum is σ = 353479680. Its totient is φ = 80974080.

The previous prime is 197494723. The next prime is 197494741. The reversal of 197494738 is 837494791.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36070 + ... + 41182.

It is an arithmetic number, because the mean of its divisors is an integer number (11046240).

Almost surely, 2^197494738 is an apocalyptic number.

197494738 is a deficient number, since it is larger than the sum of its proper divisors (155984942).

197494738 is a wasteful number, since it uses less digits than its factorization.

197494738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5242.

The product of its digits is 1524096, while the sum is 52.

The square root of 197494738 is about 14053.2821077498. The cubic root of 197494738 is about 582.3514702932.

The spelling of 197494738 in words is "one hundred ninety-seven million, four hundred ninety-four thousand, seven hundred thirty-eight".