1973747 has 2 divisors, whose sum is σ = 1973748. Its totient is φ = 1973746.

The previous prime is 1973737. The next prime is 1973749. The reversal of 1973747 is 7473791.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1973747 - 2⁴ = 1973731 is a prime.

Together with 1973749, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1973747.

It is not a weakly prime, because it can be changed into another prime (1973749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 986873 + 986874.

It is an arithmetic number, because the mean of its divisors is an integer number (986874).

2^1973747 is an apocalyptic number.

1973747 is a deficient number, since it is larger than the sum of its proper divisors (1).

1973747 is an equidigital number, since it uses as much as digits as its factorization.

1973747 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37044, while the sum is 38.

The square root of 1973747 is about 1404.9010641323. The cubic root of 1973747 is about 125.4383966694.

The spelling of 1973747 in words is "one million, nine hundred seventy-three thousand, seven hundred forty-seven".