68473849 has 4 divisors (see below), whose sum is σ = 68587264. Its totient is φ = 68360436.

The previous prime is 68473751. The next prime is 68473871. The reversal of 68473849 is 94837486.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 94837486 = 2 ⋅47418743.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68473849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68473879) 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, 55797 + ... + 57010.

It is an arithmetic number, because the mean of its divisors is an integer number (17146816).

Almost surely, 2^68473849 is an apocalyptic number.

It is an amenable number.

68473849 is a deficient number, since it is larger than the sum of its proper divisors (113415).

68473849 is a wasteful number, since it uses less digits than its factorization.

68473849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113414.

The product of its digits is 1161216, while the sum is 49.

The square root of 68473849 is about 8274.8926881259. The cubic root of 68473849 is about 409.1113989273. Note that the first 3 decimals are identical.

The spelling of 68473849 in words is "sixty-eight million, four hundred seventy-three thousand, eight hundred forty-nine".