298072387 has 4 divisors (see below), whose sum is σ = 311032080. Its totient is φ = 285112696.

The previous prime is 298072351. The next prime is 298072391. The reversal of 298072387 is 783270892.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 298072387 - 2¹⁹ = 297548099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (298072787) 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, 6479812 + ... + 6479857.

It is an arithmetic number, because the mean of its divisors is an integer number (77758020).

Almost surely, 2^298072387 is an apocalyptic number.

298072387 is a deficient number, since it is larger than the sum of its proper divisors (12959693).

298072387 is a wasteful number, since it uses less digits than its factorization.

298072387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12959692.

The product of its (nonzero) digits is 338688, while the sum is 46.

The square root of 298072387 is about 17264.7730074855. The cubic root of 298072387 is about 667.9960819149.

The spelling of 298072387 in words is "two hundred ninety-eight million, seventy-two thousand, three hundred eighty-seven".