60687257 has 8 divisors (see below), whose sum is σ = 62379240. Its totient is φ = 59005440.

The previous prime is 60687217. The next prime is 60687283. The reversal of 60687257 is 75278606.

It is a happy number.

60687257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 17272336 + 43414921 = 4156^2 + 6589^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 60687257 - 2⁸ = 60687001 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (60687217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10469 + ... + 15197.

It is an arithmetic number, because the mean of its divisors is an integer number (7797405).

Almost surely, 2^60687257 is an apocalyptic number.

It is an amenable number.

60687257 is a deficient number, since it is larger than the sum of its proper divisors (1691983).

60687257 is a wasteful number, since it uses less digits than its factorization.

60687257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5083.

The product of its (nonzero) digits is 141120, while the sum is 41.

The square root of 60687257 is about 7790.2026289436. The cubic root of 60687257 is about 392.9758265642.

The spelling of 60687257 in words is "sixty million, six hundred eighty-seven thousand, two hundred fifty-seven".