1973398 has 16 divisors (see below), whose sum is σ = 3492864. Its totient is φ = 818280.

The previous prime is 1973381. The next prime is 1973407. The reversal of 1973398 is 8933791.

It is a self number, because there is not a number n which added to its sum of digits gives 1973398.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1840 + ... + 2707.

It is an arithmetic number, because the mean of its divisors is an integer number (218304).

2^1973398 is an apocalyptic number.

1973398 is a deficient number, since it is larger than the sum of its proper divisors (1519466).

1973398 is a wasteful number, since it uses less digits than its factorization.

1973398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4587.

The product of its digits is 40824, while the sum is 40.

The square root of 1973398 is about 1404.7768506065. The cubic root of 1973398 is about 125.4310028510.

The spelling of 1973398 in words is "one million, nine hundred seventy-three thousand, three hundred ninety-eight".