7169421 has 16 divisors (see below), whose sum is σ = 10986624. Its totient is φ = 4073664.

The previous prime is 7169413. The next prime is 7169429. The reversal of 7169421 is 1249617.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (7169413) and next prime (7169429).

It is not a de Polignac number, because 7169421 - 2³ = 7169413 is a prime.

7169421 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7169429) 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 in 15 ways as a sum of consecutive naturals, for example, 3271 + ... + 5003.

It is an arithmetic number, because the mean of its divisors is an integer number (686664).

Almost surely, 2^7169421 is an apocalyptic number.

It is an amenable number.

7169421 is a deficient number, since it is larger than the sum of its proper divisors (3817203).

7169421 is a wasteful number, since it uses less digits than its factorization.

7169421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1940.

The product of its digits is 3024, while the sum is 30.

The square root of 7169421 is about 2677.5774498602. The cubic root of 7169421 is about 192.8241214088.

The spelling of 7169421 in words is "seven million, one hundred sixty-nine thousand, four hundred twenty-one".