1912973 has 4 divisors (see below), whose sum is σ = 1923840. Its totient is φ = 1902108.

The previous prime is 1912969. The next prime is 1912991. The reversal of 1912973 is 3792191.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1912973 - 2² = 1912969 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1912903) 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, 5165 + ... + 5522.

It is an arithmetic number, because the mean of its divisors is an integer number (480960).

2^1912973 is an apocalyptic number.

It is an amenable number.

1912973 is a deficient number, since it is larger than the sum of its proper divisors (10867).

1912973 is a wasteful number, since it uses less digits than its factorization.

1912973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10866.

The product of its digits is 3402, while the sum is 32.

The square root of 1912973 is about 1383.1026715324. The cubic root of 1912973 is about 124.1374862488.

The spelling of 1912973 in words is "one million, nine hundred twelve thousand, nine hundred seventy-three".