68491059 has 32 divisors (see below), whose sum is σ = 116035584. Its totient is φ = 34957440.

The previous prime is 68491057. The next prime is 68491061. The reversal of 68491059 is 95019486.

It is an interprime number because it is at equal distance from previous prime (68491057) and next prime (68491061).

It is not a de Polignac number, because 68491059 - 2¹ = 68491057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68491059.

It is not an unprimeable number, because it can be changed into a prime (68491051) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4417 + ... + 12509.

It is an arithmetic number, because the mean of its divisors is an integer number (3626112).

Almost surely, 2^68491059 is an apocalyptic number.

68491059 is a deficient number, since it is larger than the sum of its proper divisors (47544525).

68491059 is a wasteful number, since it uses less digits than its factorization.

68491059 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8147.

The product of its (nonzero) digits is 77760, while the sum is 42.

The square root of 68491059 is about 8275.9325154329. The cubic root of 68491059 is about 409.1456709766.

The spelling of 68491059 in words is "sixty-eight million, four hundred ninety-one thousand, fifty-nine".