973947749 has 2 divisors, whose sum is σ = 973947750. Its totient is φ = 973947748.

The previous prime is 973947679. The next prime is 973947851. The reversal of 973947749 is 947749379.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 969076900 + 4870849 = 31130^2 + 2207^2 .

It is an emirp because it is prime and its reverse (947749379) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 973947749 - 2¹² = 973943653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (973947349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 486973874 + 486973875.

It is an arithmetic number, because the mean of its divisors is an integer number (486973875).

Almost surely, 2^973947749 is an apocalyptic number.

It is an amenable number.

973947749 is a deficient number, since it is larger than the sum of its proper divisors (1).

973947749 is an equidigital number, since it uses as much as digits as its factorization.

973947749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12002256, while the sum is 59.

The square root of 973947749 is about 31208.1359424109. The cubic root of 973947749 is about 991.2393922048.

The spelling of 973947749 in words is "nine hundred seventy-three million, nine hundred forty-seven thousand, seven hundred forty-nine".