635779052 has 6 divisors (see below), whose sum is σ = 1112613348. Its totient is φ = 317889524.

The previous prime is 635779049. The next prime is 635779057. The reversal of 635779052 is 250977536.

It is a junction number, because it is equal to n+sod(n) for n = 635778994 and 635779012.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79472378 + ... + 79472385.

It is an arithmetic number, because the mean of its divisors is an integer number (185435558).

Almost surely, 2^635779052 is an apocalyptic number.

It is an amenable number.

635779052 is a deficient number, since it is larger than the sum of its proper divisors (476834296).

635779052 is a wasteful number, since it uses less digits than its factorization.

635779052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158944767 (or 158944765 counting only the distinct ones).

The product of its (nonzero) digits is 396900, while the sum is 44.

The square root of 635779052 is about 25214.6594662708. The cubic root of 635779052 is about 859.8751630587.

The spelling of 635779052 in words is "six hundred thirty-five million, seven hundred seventy-nine thousand, fifty-two".