696054821401 has 3 divisors (see below), whose sum is σ = 696055655701. Its totient is φ = 696053987102.

The previous prime is 696054821389. The next prime is 696054821411. The reversal of 696054821401 is 104128450696.

It is a happy number.

The square root of 696054821401 is 834299.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 696054821401 - 2¹¹ = 696054819353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (696054821411) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 417150 + ... + 1251448.

Almost surely, 2^696054821401 is an apocalyptic number.

696054821401 is the 834299-th square number.

696054821401 is the 417150-th centered octagonal number.

It is an amenable number.

696054821401 is a deficient number, since it is larger than the sum of its proper divisors (834300).

696054821401 is an frugal number, since it uses more digits than its factorization.

696054821401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1668598 (or 834299 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 46.

The spelling of 696054821401 in words is "six hundred ninety-six billion, fifty-four million, eight hundred twenty-one thousand, four hundred one".