649754293 has 2 divisors, whose sum is σ = 649754294. Its totient is φ = 649754292.

The previous prime is 649754269. The next prime is 649754317. The reversal of 649754293 is 392457946.

It is a balanced prime because it is at equal distance from previous prime (649754269) and next prime (649754317).

It can be written as a sum of positive squares in only one way, i.e., 645058404 + 4695889 = 25398^2 + 2167^2 .

It is a cyclic number.

It is not a de Polignac number, because 649754293 - 2²¹ = 647657141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (649754213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 324877146 + 324877147.

It is an arithmetic number, because the mean of its divisors is an integer number (324877147).

Almost surely, 2^649754293 is an apocalyptic number.

It is an amenable number.

649754293 is a deficient number, since it is larger than the sum of its proper divisors (1).

649754293 is an equidigital number, since it uses as much as digits as its factorization.

649754293 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1632960, while the sum is 49.

The square root of 649754293 is about 25490.2784017751. The cubic root of 649754293 is about 866.1299423480.

The spelling of 649754293 in words is "six hundred forty-nine million, seven hundred fifty-four thousand, two hundred ninety-three".