635349249 has 6 divisors (see below), whose sum is σ = 917726706. Its totient is φ = 423566160.

The previous prime is 635349241. The next prime is 635349257. The reversal of 635349249 is 942943536.

635349249 is a `hidden beast` number, since 63 + 5 + 349 + 249 = 666.

It is an interprime number because it is at equal distance from previous prime (635349241) and next prime (635349257).

It can be written as a sum of positive squares in only one way, i.e., 634284225 + 1065024 = 25185^2 + 1032^2 .

It is not a de Polignac number, because 635349249 - 2³ = 635349241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (635349241) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 35297172 + ... + 35297189.

It is an arithmetic number, because the mean of its divisors is an integer number (152954451).

Almost surely, 2^635349249 is an apocalyptic number.

It is an amenable number.

635349249 is a deficient number, since it is larger than the sum of its proper divisors (282377457).

635349249 is a wasteful number, since it uses less digits than its factorization.

635349249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70594367 (or 70594364 counting only the distinct ones).

The product of its digits is 699840, while the sum is 45.

The square root of 635349249 is about 25206.1351460314. The cubic root of 635349249 is about 859.6813534660.

The spelling of 635349249 in words is "six hundred thirty-five million, three hundred forty-nine thousand, two hundred forty-nine".