635779054 has 4 divisors (see below), whose sum is σ = 953668584. Its totient is φ = 317889526.

The previous prime is 635779049. The next prime is 635779057. The reversal of 635779054 is 450977536.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 635778995 and 635779013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (635779057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158944762 + ... + 158944765.

It is an arithmetic number, because the mean of its divisors is an integer number (238417146).

Almost surely, 2^635779054 is an apocalyptic number.

635779054 is a deficient number, since it is larger than the sum of its proper divisors (317889530).

635779054 is a wasteful number, since it uses less digits than its factorization.

635779054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317889529.

The product of its (nonzero) digits is 793800, while the sum is 46.

The square root of 635779054 is about 25214.6595059303. The cubic root of 635779054 is about 859.8751639603.

It can be divided in two parts, 635 and 779054, that added together give a square (779689 = 883²).

The spelling of 635779054 in words is "six hundred thirty-five million, seven hundred seventy-nine thousand, fifty-four".