68490883 has 4 divisors (see below), whose sum is σ = 68574928. Its totient is φ = 68406840.

The previous prime is 68490871. The next prime is 68490889. The reversal of 68490883 is 38809486.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 38809486 = 2 ⋅19404743.

It is a cyclic number.

It is not a de Polignac number, because 68490883 - 2⁹ = 68490371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68490889) 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, 40788 + ... + 42433.

It is an arithmetic number, because the mean of its divisors is an integer number (17143732).

Almost surely, 2^68490883 is an apocalyptic number.

68490883 is a deficient number, since it is larger than the sum of its proper divisors (84045).

68490883 is an equidigital number, since it uses as much as digits as its factorization.

68490883 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84044.

The product of its (nonzero) digits is 331776, while the sum is 46.

The square root of 68490883 is about 8275.9218821833. The cubic root of 68490883 is about 409.1453205187.

The spelling of 68490883 in words is "sixty-eight million, four hundred ninety thousand, eight hundred eighty-three".