68820867 has 16 divisors (see below), whose sum is σ = 102574080. Its totient is φ = 45602856.

The previous prime is 68820833. The next prime is 68820877. The reversal of 68820867 is 76802886.

It is not a de Polignac number, because 68820867 - 2⁶ = 68820803 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68820827) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3123 + ... + 12140.

It is an arithmetic number, because the mean of its divisors is an integer number (6410880).

Almost surely, 2^68820867 is an apocalyptic number.

68820867 is a deficient number, since it is larger than the sum of its proper divisors (33753213).

68820867 is a wasteful number, since it uses less digits than its factorization.

68820867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15439 (or 15433 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The square root of 68820867 is about 8295.8343160890. The cubic root of 68820867 is about 409.8013453649.

The spelling of 68820867 in words is "sixty-eight million, eight hundred twenty thousand, eight hundred sixty-seven".