9973761 has 8 divisors (see below), whose sum is σ = 15198144. Its totient is φ = 5699280.

The previous prime is 9973753. The next prime is 9973763. The reversal of 9973761 is 1673799.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 9973761 - 2³ = 9973753 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (9973763) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 237450 + ... + 237491.

It is an arithmetic number, because the mean of its divisors is an integer number (1899768).

It is a Proth number, since it is equal to 2435 ⋅ 2¹² + 1 and 2435 < 2¹².

Almost surely, 2^9973761 is an apocalyptic number.

It is an amenable number.

9973761 is a deficient number, since it is larger than the sum of its proper divisors (5224383).

9973761 is a wasteful number, since it uses less digits than its factorization.

9973761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474951.

The product of its digits is 71442, while the sum is 42.

The square root of 9973761 is about 3158.1261849394. The cubic root of 9973761 is about 215.2548699124.

The spelling of 9973761 in words is "nine million, nine hundred seventy-three thousand, seven hundred sixty-one".