1997754382 has 16 divisors (see below), whose sum is σ = 3260415312. Its totient is φ = 912533760.

The previous prime is 1997754293. The next prime is 1997754383. The reversal of 1997754382 is 2834577991.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1997754383) 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, 393544 + ... + 398587.

It is an arithmetic number, because the mean of its divisors is an integer number (203775957).

Almost surely, 2^1997754382 is an apocalyptic number.

1997754382 is a deficient number, since it is larger than the sum of its proper divisors (1262660930).

1997754382 is a wasteful number, since it uses less digits than its factorization.

1997754382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 792243.

The product of its digits is 3810240, while the sum is 55.

The square root of 1997754382 is about 44696.2457260115. The cubic root of 1997754382 is about 1259.4493230664.

The spelling of 1997754382 in words is "one billion, nine hundred ninety-seven million, seven hundred fifty-four thousand, three hundred eighty-two".