68710445 has 4 divisors (see below), whose sum is σ = 82452540. Its totient is φ = 54968352.

The previous prime is 68710427. The next prime is 68710457. The reversal of 68710445 is 54401786.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54401786 = 2 ⋅27200893.

It can be written as a sum of positive squares in 2 ways, for example, as 20241001 + 48469444 = 4499^2 + 6962^2 .

It is a cyclic number.

It is not a de Polignac number, because 68710445 - 2⁸ = 68710189 is a prime.

It is a super-2 number, since 2×68710445² = 9442250504196050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6871040 + ... + 6871049.

It is an arithmetic number, because the mean of its divisors is an integer number (20613135).

Almost surely, 2^68710445 is an apocalyptic number.

It is an amenable number.

68710445 is a deficient number, since it is larger than the sum of its proper divisors (13742095).

68710445 is a wasteful number, since it uses less digits than its factorization.

68710445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13742094.

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 68710445 is about 8289.1763764562. The cubic root of 68710445 is about 409.5820547666.

The spelling of 68710445 in words is "sixty-eight million, seven hundred ten thousand, four hundred forty-five".