61687341 has 24 divisors (see below), whose sum is σ = 90581400. Its totient is φ = 40450176.

The previous prime is 61687331. The next prime is 61687363. The reversal of 61687341 is 14378616.

61687341 is a `hidden beast` number, since 616 + 8 + 7 + 34 + 1 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 7001316 + 54686025 = 2646^2 + 7395^2 .

It is not a de Polignac number, because 61687341 - 2⁶ = 61687277 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 61687296 and 61687305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61687331) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 210391 + ... + 210683.

It is an arithmetic number, because the mean of its divisors is an integer number (3774225).

Almost surely, 2^61687341 is an apocalyptic number.

It is an amenable number.

61687341 is a deficient number, since it is larger than the sum of its proper divisors (28894059).

61687341 is a wasteful number, since it uses less digits than its factorization.

61687341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605 (or 602 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 61687341 is about 7854.1289141445. The cubic root of 61687341 is about 395.1227327845.

The spelling of 61687341 in words is "sixty-one million, six hundred eighty-seven thousand, three hundred forty-one".