61354887 has 16 divisors (see below), whose sum is σ = 94493952. Its totient is φ = 34997120.

The previous prime is 61354883. The next prime is 61354889. The reversal of 61354887 is 78845316.

61354887 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 61354887 - 2² = 61354883 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61354883) 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 15 ways as a sum of consecutive naturals, for example, 54123 + ... + 55244.

It is an arithmetic number, because the mean of its divisors is an integer number (5905872).

Almost surely, 2^61354887 is an apocalyptic number.

61354887 is a deficient number, since it is larger than the sum of its proper divisors (33139065).

61354887 is a wasteful number, since it uses less digits than its factorization.

61354887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109398.

The product of its digits is 161280, while the sum is 42.

The square root of 61354887 is about 7832.9360395703. The cubic root of 61354887 is about 394.4116370048.

The spelling of 61354887 in words is "sixty-one million, three hundred fifty-four thousand, eight hundred eighty-seven".