68347051 has 4 divisors (see below), whose sum is σ = 69636672. Its totient is φ = 67057432.

The previous prime is 68347043. The next prime is 68347057. The reversal of 68347051 is 15074386.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15074386 = 2 ⋅7537193.

It is a cyclic number.

It is not a de Polignac number, because 68347051 - 2³ = 68347043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68346998 and 68347016.

It is not an unprimeable number, because it can be changed into a prime (68347057) 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, 644731 + ... + 644836.

It is an arithmetic number, because the mean of its divisors is an integer number (17409168).

Almost surely, 2^68347051 is an apocalyptic number.

68347051 is a deficient number, since it is larger than the sum of its proper divisors (1289621).

68347051 is a wasteful number, since it uses less digits than its factorization.

68347051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1289620.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 68347051 is about 8267.2275280169. The cubic root of 68347051 is about 408.8587157944.

The spelling of 68347051 in words is "sixty-eight million, three hundred forty-seven thousand, fifty-one".