61162689 has 32 divisors (see below), whose sum is σ = 95800320. Its totient is φ = 33988032.

The previous prime is 61162679. The next prime is 61162697. The reversal of 61162689 is 98626116.

It is not a de Polignac number, because 61162689 - 2⁷ = 61162561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61162639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 199074 + ... + 199380.

It is an arithmetic number, because the mean of its divisors is an integer number (2993760).

Almost surely, 2^61162689 is an apocalyptic number.

It is an amenable number.

61162689 is a deficient number, since it is larger than the sum of its proper divisors (34637631).

61162689 is a wasteful number, since it uses less digits than its factorization.

61162689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549.

The product of its digits is 31104, while the sum is 39.

The square root of 61162689 is about 7820.6578367807. The cubic root of 61162689 is about 393.9993665548. Note that the first 3 decimals are identical.

The spelling of 61162689 in words is "sixty-one million, one hundred sixty-two thousand, six hundred eighty-nine".