7121693 has 2 divisors, whose sum is σ = 7121694. Its totient is φ = 7121692.

The previous prime is 7121687. The next prime is 7121701. The reversal of 7121693 is 3961217.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3928324 + 3193369 = 1982^2 + 1787^2 .

It is a cyclic number.

It is not a de Polignac number, because 7121693 - 2⁶ = 7121629 is a prime.

It is a super-2 number, since 2×7121693² = 101437022372498, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7121603) by changing a digit.

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, 3560846 + 3560847.

It is an arithmetic number, because the mean of its divisors is an integer number (3560847).

Almost surely, 2^7121693 is an apocalyptic number.

It is an amenable number.

7121693 is a deficient number, since it is larger than the sum of its proper divisors (1).

7121693 is an equidigital number, since it uses as much as digits as its factorization.

7121693 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2268, while the sum is 29.

The square root of 7121693 is about 2668.6500332565. The cubic root of 7121693 is about 192.3952812123.

The spelling of 7121693 in words is "seven million, one hundred twenty-one thousand, six hundred ninety-three".