61190887 has 8 divisors (see below), whose sum is σ = 64541360. Its totient is φ = 57853440.

The previous prime is 61190821. The next prime is 61190891. The reversal of 61190887 is 78809116.

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 61190887 - 2¹¹ = 61188839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61190387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7303 + ... + 13255.

It is an arithmetic number, because the mean of its divisors is an integer number (8067670).

Almost surely, 2^61190887 is an apocalyptic number.

61190887 is a deficient number, since it is larger than the sum of its proper divisors (3350473).

61190887 is a wasteful number, since it uses less digits than its factorization.

61190887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6513.

The product of its (nonzero) digits is 24192, while the sum is 40.

The square root of 61190887 is about 7822.4604185640. The cubic root of 61190887 is about 394.0599061169.

The spelling of 61190887 in words is "sixty-one million, one hundred ninety thousand, eight hundred eighty-seven".