658240067 has 4 divisors (see below), whose sum is σ = 658292040. Its totient is φ = 658188096.

The previous prime is 658239997. The next prime is 658240091. The reversal of 658240067 is 760042856.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 658240067 - 2⁸ = 658239811 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 658240067.

It is not an unprimeable number, because it can be changed into a prime (658240097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6803 + ... + 36915.

It is an arithmetic number, because the mean of its divisors is an integer number (164573010).

Almost surely, 2^658240067 is an apocalyptic number.

658240067 is a deficient number, since it is larger than the sum of its proper divisors (51973).

658240067 is a wasteful number, since it uses less digits than its factorization.

658240067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51972.

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 658240067 is about 25656.1896430472. The cubic root of 658240067 is about 869.8841907768.

The spelling of 658240067 in words is "six hundred fifty-eight million, two hundred forty thousand, sixty-seven".