298642739 has 2 divisors, whose sum is σ = 298642740. Its totient is φ = 298642738.

The previous prime is 298642717. The next prime is 298642753. The reversal of 298642739 is 937246892.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 298642739 - 2²⁴ = 281865523 is a prime.

It is not a weakly prime, because it can be changed into another prime (298642709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 149321369 + 149321370.

It is an arithmetic number, because the mean of its divisors is an integer number (149321370).

Almost surely, 2^298642739 is an apocalyptic number.

298642739 is a deficient number, since it is larger than the sum of its proper divisors (1).

298642739 is an equidigital number, since it uses as much as digits as its factorization.

298642739 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1306368, while the sum is 50.

The square root of 298642739 is about 17281.2829095528. The cubic root of 298642739 is about 668.4218735123.

The spelling of 298642739 in words is "two hundred ninety-eight million, six hundred forty-two thousand, seven hundred thirty-nine".