60820645 has 8 divisors (see below), whose sum is σ = 77278104. Its totient is φ = 45794304.

The previous prime is 60820609. The next prime is 60820651. The reversal of 60820645 is 54602806.

It can be written as a sum of positive squares in 4 ways, for example, as 25786084 + 35034561 = 5078^2 + 5919^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-60820645 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 357684 + ... + 357853.

It is an arithmetic number, because the mean of its divisors is an integer number (9659763).

Almost surely, 2^60820645 is an apocalyptic number.

It is an amenable number.

60820645 is a deficient number, since it is larger than the sum of its proper divisors (16457459).

60820645 is a wasteful number, since it uses less digits than its factorization.

60820645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715559.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 60820645 is about 7798.7591961799. The cubic root of 60820645 is about 393.2635305766.

The spelling of 60820645 in words is "sixty million, eight hundred twenty thousand, six hundred forty-five".