61895961 has 16 divisors (see below), whose sum is σ = 91819200. Its totient is φ = 41209344.

The previous prime is 61895959. The next prime is 61895983. The reversal of 61895961 is 16959816.

61895961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 61895961 - 2¹ = 61895959 is a prime.

It is a super-2 number, since 2×61895961² = 7662219976227042, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61895761) 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, 37230 + ... + 38856.

It is an arithmetic number, because the mean of its divisors is an integer number (5738700).

Almost surely, 2^61895961 is an apocalyptic number.

It is an amenable number.

61895961 is a deficient number, since it is larger than the sum of its proper divisors (29923239).

61895961 is a wasteful number, since it uses less digits than its factorization.

61895961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3045 (or 3039 counting only the distinct ones).

The product of its digits is 116640, while the sum is 45.

The square root of 61895961 is about 7867.3986170779. The cubic root of 61895961 is about 395.5676525668.

The spelling of 61895961 in words is "sixty-one million, eight hundred ninety-five thousand, nine hundred sixty-one".