635796401 has 4 divisors (see below), whose sum is σ = 649324032. Its totient is φ = 622268772.

The previous prime is 635796397. The next prime is 635796431. The reversal of 635796401 is 104697536.

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 635796401 - 2² = 635796397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (635796431) 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, 6763745 + ... + 6763838.

It is an arithmetic number, because the mean of its divisors is an integer number (162331008).

Almost surely, 2^635796401 is an apocalyptic number.

It is an amenable number.

635796401 is a deficient number, since it is larger than the sum of its proper divisors (13527631).

635796401 is a wasteful number, since it uses less digits than its factorization.

635796401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13527630.

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 635796401 is about 25215.0034899859. The cubic root of 635796401 is about 859.8829843494.

The spelling of 635796401 in words is "six hundred thirty-five million, seven hundred ninety-six thousand, four hundred one".