696624401 has 4 divisors (see below), whose sum is σ = 759953904. Its totient is φ = 633294900.

The previous prime is 696624389. The next prime is 696624403. The reversal of 696624401 is 104426696.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 696624401 - 2¹⁰ = 696623377 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (696624403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31664735 + ... + 31664756.

It is an arithmetic number, because the mean of its divisors is an integer number (189988476).

Almost surely, 2^696624401 is an apocalyptic number.

It is an amenable number.

696624401 is a deficient number, since it is larger than the sum of its proper divisors (63329503).

696624401 is a wasteful number, since it uses less digits than its factorization.

696624401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63329502.

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 696624401 is about 26393.6431930115. The cubic root of 696624401 is about 886.4744595496.

The spelling of 696624401 in words is "six hundred ninety-six million, six hundred twenty-four thousand, four hundred one".