9665974 has 4 divisors (see below), whose sum is σ = 14498964. Its totient is φ = 4832986.

The previous prime is 9665969. The next prime is 9665983. The reversal of 9665974 is 4795669.

9665974 = T₂₅₃₇ + T₂₅₃₈ + T₂₅₃₉.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4795669 = 31 ⋅154699.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2416492 + ... + 2416495.

It is an arithmetic number, because the mean of its divisors is an integer number (3624741).

Almost surely, 2^9665974 is an apocalyptic number.

9665974 is the 2539-th centered triangular number.

9665974 is a deficient number, since it is larger than the sum of its proper divisors (4832990).

9665974 is a wasteful number, since it uses less digits than its factorization.

9665974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4832989.

The product of its digits is 408240, while the sum is 46.

The square root of 9665974 is about 3109.0149565417. The cubic root of 9665974 is about 213.0174627692.

The spelling of 9665974 in words is "nine million, six hundred sixty-five thousand, nine hundred seventy-four".