7021946 has 12 divisors (see below), whose sum is σ = 11012442. Its totient is φ = 3357816.

The previous prime is 7021939. The next prime is 7021951. The reversal of 7021946 is 6491207.

It can be written as a sum of positive squares in only one way, i.e., 6996025 + 25921 = 2645^2 + 161^2 .

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

It is a Curzon 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 in 5 ways as a sum of consecutive naturals, for example, 2261 + ... + 4376.

Almost surely, 2^7021946 is an apocalyptic number.

7021946 is a deficient number, since it is larger than the sum of its proper divisors (3990496).

7021946 is a wasteful number, since it uses less digits than its factorization.

7021946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6685 (or 6662 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 7021946 is about 2649.8954696365. The cubic root of 7021946 is about 191.4928201422.

The spelling of 7021946 in words is "seven million, twenty-one thousand, nine hundred forty-six".