9921374 has 4 divisors (see below), whose sum is σ = 14882064. Its totient is φ = 4960686.

The previous prime is 9921343. The next prime is 9921383. The reversal of 9921374 is 4731299.

It is a semiprime because it is the product of two primes.

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, 2480342 + ... + 2480345.

It is an arithmetic number, because the mean of its divisors is an integer number (3720516).

Almost surely, 2^9921374 is an apocalyptic number.

9921374 is a deficient number, since it is larger than the sum of its proper divisors (4960690).

9921374 is a wasteful number, since it uses less digits than its factorization.

9921374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4960689.

The product of its digits is 13608, while the sum is 35.

The square root of 9921374 is about 3149.8212647704. The cubic root of 9921374 is about 214.8773340297.

The spelling of 9921374 in words is "nine million, nine hundred twenty-one thousand, three hundred seventy-four".