7906406 has 8 divisors (see below), whose sum is σ = 11875080. Its totient is φ = 3948048.

The previous prime is 7906403. The next prime is 7906417. The reversal of 7906406 is 6046097.

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

It is a super-2 number, since 2×7906406² = 125022511673672, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7906403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 236 + ... + 3983.

It is an arithmetic number, because the mean of its divisors is an integer number (1484385).

Almost surely, 2^7906406 is an apocalyptic number.

7906406 is a deficient number, since it is larger than the sum of its proper divisors (3968674).

7906406 is a wasteful number, since it uses less digits than its factorization.

7906406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5158.

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

The square root of 7906406 is about 2811.8332098473. The cubic root of 7906406 is about 199.2169884653.

The spelling of 7906406 in words is "seven million, nine hundred six thousand, four hundred six".