293680649 has 2 divisors, whose sum is σ = 293680650. Its totient is φ = 293680648.

The previous prime is 293680633. The next prime is 293680823. The reversal of 293680649 is 946086392.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 290191225 + 3489424 = 17035^2 + 1868^2 .

It is a cyclic number.

It is not a de Polignac number, because 293680649 - 2⁴ = 293680633 is a prime.

It is a super-2 number, since 2×293680649² = 172496647194122402, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (293680619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 146840324 + 146840325.

It is an arithmetic number, because the mean of its divisors is an integer number (146840325).

Almost surely, 2^293680649 is an apocalyptic number.

It is an amenable number.

293680649 is a deficient number, since it is larger than the sum of its proper divisors (1).

293680649 is an equidigital number, since it uses as much as digits as its factorization.

293680649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 559872, while the sum is 47.

The square root of 293680649 is about 17137.1132049713. The cubic root of 293680649 is about 664.6991301068.

The spelling of 293680649 in words is "two hundred ninety-three million, six hundred eighty thousand, six hundred forty-nine".