7921346 has 4 divisors (see below), whose sum is σ = 11882022. Its totient is φ = 3960672.

The previous prime is 7921313. The next prime is 7921351. The reversal of 7921346 is 6431297.

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

It can be written as a sum of positive squares in only one way, i.e., 6943225 + 978121 = 2635^2 + 989^2 .

It is a d-powerful number, because it can be written as 7⁸ + 9² + 2²¹ + 1 + 3¹⁰ + 4⁴ + 6 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1980335 + ... + 1980338.

Almost surely, 2^7921346 is an apocalyptic number.

7921346 is a deficient number, since it is larger than the sum of its proper divisors (3960676).

7921346 is a wasteful number, since it uses less digits than its factorization.

7921346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3960675.

The product of its digits is 9072, while the sum is 32.

The square root of 7921346 is about 2814.4885858713. The cubic root of 7921346 is about 199.3423901161.

The spelling of 7921346 in words is "seven million, nine hundred twenty-one thousand, three hundred forty-six".