649092311 has 4 divisors (see below), whose sum is σ = 741819792. Its totient is φ = 556364832.

The previous prime is 649092263. The next prime is 649092313. The reversal of 649092311 is 113290946.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 113290946 = 2 ⋅56645473.

It is a cyclic number.

It is not a de Polignac number, because 649092311 - 2²⁶ = 581983447 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (649092313) 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, 46363730 + ... + 46363743.

It is an arithmetic number, because the mean of its divisors is an integer number (185454948).

Almost surely, 2^649092311 is an apocalyptic number.

649092311 is a deficient number, since it is larger than the sum of its proper divisors (92727481).

649092311 is an equidigital number, since it uses as much as digits as its factorization.

649092311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92727480.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 649092311 is about 25477.2901031487. The cubic root of 649092311 is about 865.8356991930.

The spelling of 649092311 in words is "six hundred forty-nine million, ninety-two thousand, three hundred eleven".