61034857 has 10 divisors (see below), whose sum is σ = 66151858. Its totient is φ = 56313504.

The previous prime is 61034843. The next prime is 61034881. The reversal of 61034857 is 75843016.

61034857 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 5 ways, for example, as 60279696 + 755161 = 7764^2 + 869^2 .

It is a de Polignac number, because none of the positive numbers 2^k-61034857 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (61034887) 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 9 ways as a sum of consecutive naturals, for example, 27493 + ... + 29629.

Almost surely, 2^61034857 is an apocalyptic number.

It is an amenable number.

61034857 is a deficient number, since it is larger than the sum of its proper divisors (5117001).

61034857 is an frugal number, since it uses more digits than its factorization.

61034857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2189 (or 2150 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 61034857 is about 7812.4808479765. The cubic root of 61034857 is about 393.7246846242.

The spelling of 61034857 in words is "sixty-one million, thirty-four thousand, eight hundred fifty-seven".