649613527 has 8 divisors (see below), whose sum is σ = 669849264. Its totient is φ = 629673408.

The previous prime is 649613491. The next prime is 649613557. The reversal of 649613527 is 725316946.

649613527 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 649613527 - 2⁷ = 649613399 is a prime.

It is a super-2 number, since 2×649613527² = 843995468922759458, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (649613557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69438 + ... + 78235.

It is an arithmetic number, because the mean of its divisors is an integer number (83731158).

Almost surely, 2^649613527 is an apocalyptic number.

649613527 is a deficient number, since it is larger than the sum of its proper divisors (20235737).

649613527 is a wasteful number, since it uses less digits than its factorization.

649613527 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147809.

The product of its digits is 272160, while the sum is 43.

The square root of 649613527 is about 25487.5170818972. The cubic root of 649613527 is about 866.0673902651.

The spelling of 649613527 in words is "six hundred forty-nine million, six hundred thirteen thousand, five hundred twenty-seven".