297849649 has 4 divisors (see below), whose sum is σ = 297953136. Its totient is φ = 297746164.

The previous prime is 297849637. The next prime is 297849661. The reversal of 297849649 is 946948792.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (297849637) and next prime (297849661).

It is a cyclic number.

It is not a de Polignac number, because 297849649 - 2⁷ = 297849521 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 297849593 and 297849602.

It is not an unprimeable number, because it can be changed into a prime (297849679) 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, 47299 + ... + 53224.

It is an arithmetic number, because the mean of its divisors is an integer number (74488284).

Almost surely, 2^297849649 is an apocalyptic number.

It is an amenable number.

297849649 is a deficient number, since it is larger than the sum of its proper divisors (103487).

297849649 is a wasteful number, since it uses less digits than its factorization.

297849649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103486.

The product of its digits is 7838208, while the sum is 58.

The square root of 297849649 is about 17258.3211524180. The cubic root of 297849649 is about 667.8296512151.

The spelling of 297849649 in words is "two hundred ninety-seven million, eight hundred forty-nine thousand, six hundred forty-nine".