61676489 has 12 divisors (see below), whose sum is σ = 74395584. Its totient is φ = 50081112.

The previous prime is 61676467. The next prime is 61676509. The reversal of 61676489 is 98467616.

It is a happy number.

It is not a de Polignac number, because 61676489 - 2²⁰ = 60627913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61676449) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9677 + ... + 14730.

It is an arithmetic number, because the mean of its divisors is an integer number (6199632).

Almost surely, 2^61676489 is an apocalyptic number.

It is an amenable number.

61676489 is a deficient number, since it is larger than the sum of its proper divisors (12719095).

61676489 is a wasteful number, since it uses less digits than its factorization.

61676489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24452 (or 24433 counting only the distinct ones).

The product of its digits is 435456, while the sum is 47.

The square root of 61676489 is about 7853.4380369364. The cubic root of 61676489 is about 395.0995615077.

The spelling of 61676489 in words is "sixty-one million, six hundred seventy-six thousand, four hundred eighty-nine".