61063887 has 4 divisors (see below), whose sum is σ = 81418520. Its totient is φ = 40709256.

The previous prime is 61063817. The next prime is 61063901. The reversal of 61063887 is 78836016.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 61063887 - 2⁸ = 61063631 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 (61063817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10177312 + ... + 10177317.

It is an arithmetic number, because the mean of its divisors is an integer number (20354630).

Almost surely, 2^61063887 is an apocalyptic number.

61063887 is a deficient number, since it is larger than the sum of its proper divisors (20354633).

61063887 is a wasteful number, since it uses less digits than its factorization.

61063887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20354632.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 61063887 is about 7814.3385516626. The cubic root of 61063887 is about 393.7870971347.

The spelling of 61063887 in words is "sixty-one million, sixty-three thousand, eight hundred eighty-seven".