696067421 has 16 divisors (see below), whose sum is σ = 824674176. Its totient is φ = 575055936.

The previous prime is 696067409. The next prime is 696067439. The reversal of 696067421 is 124760696.

It is a de Polignac number, because none of the positive numbers 2^k-696067421 is a prime.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (696067481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15155 + ... + 40271.

It is an arithmetic number, because the mean of its divisors is an integer number (51542136).

Almost surely, 2^696067421 is an apocalyptic number.

It is an amenable number.

696067421 is a deficient number, since it is larger than the sum of its proper divisors (128606755).

696067421 is a wasteful number, since it uses less digits than its factorization.

696067421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25268.

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 696067421 is about 26383.0896788075. The cubic root of 696067421 is about 886.2381388996.

The spelling of 696067421 in words is "six hundred ninety-six million, sixty-seven thousand, four hundred twenty-one".