298607623 has 2 divisors, whose sum is σ = 298607624. Its totient is φ = 298607622.

The previous prime is 298607587. The next prime is 298607641. The reversal of 298607623 is 326706892.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-298607623 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 298607623.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (298607653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 149303811 + 149303812.

It is an arithmetic number, because the mean of its divisors is an integer number (149303812).

Almost surely, 2^298607623 is an apocalyptic number.

298607623 is a deficient number, since it is larger than the sum of its proper divisors (1).

298607623 is an equidigital number, since it uses as much as digits as its factorization.

298607623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 217728, while the sum is 43.

The square root of 298607623 is about 17280.2668671523. The cubic root of 298607623 is about 668.3956736203.

The spelling of 298607623 in words is "two hundred ninety-eight million, six hundred seven thousand, six hundred twenty-three".