1973879 has 4 divisors (see below), whose sum is σ = 2011176. Its totient is φ = 1936584.

The previous prime is 1973857. The next prime is 1973893. The reversal of 1973879 is 9783791.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9783791 = 83 ⋅117877.

It is a cyclic number.

It is not a de Polignac number, because 1973879 - 2¹⁶ = 1908343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1973579) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18569 + ... + 18674.

It is an arithmetic number, because the mean of its divisors is an integer number (502794).

2^1973879 is an apocalyptic number.

1973879 is a deficient number, since it is larger than the sum of its proper divisors (37297).

1973879 is an equidigital number, since it uses as much as digits as its factorization.

1973879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37296.

The product of its digits is 95256, while the sum is 44.

The square root of 1973879 is about 1404.9480417439. The cubic root of 1973879 is about 125.4411929581.

The spelling of 1973879 in words is "one million, nine hundred seventy-three thousand, eight hundred seventy-nine".