68299499 has 8 divisors (see below), whose sum is σ = 68919552. Its totient is φ = 67682560.

The previous prime is 68299463. The next prime is 68299513. The reversal of 68299499 is 99499286.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68299499 - 2²⁴ = 51522283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68299459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66917 + ... + 67929.

It is an arithmetic number, because the mean of its divisors is an integer number (8614944).

Almost surely, 2^68299499 is an apocalyptic number.

68299499 is a deficient number, since it is larger than the sum of its proper divisors (620053).

68299499 is a wasteful number, since it uses less digits than its factorization.

68299499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1557.

The product of its digits is 2519424, while the sum is 56.

The square root of 68299499 is about 8264.3510937036. The cubic root of 68299499 is about 408.7638735639.

The spelling of 68299499 in words is "sixty-eight million, two hundred ninety-nine thousand, four hundred ninety-nine".