61770671 has 4 divisors (see below), whose sum is σ = 61880952. Its totient is φ = 61660392.

The previous prime is 61770647. The next prime is 61770679. The reversal of 61770671 is 17607716.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 61770671 - 2⁶ = 61770607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61770679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54296 + ... + 55421.

It is an arithmetic number, because the mean of its divisors is an integer number (15470238).

Almost surely, 2^61770671 is an apocalyptic number.

61770671 is a deficient number, since it is larger than the sum of its proper divisors (110281).

61770671 is a wasteful number, since it uses less digits than its factorization.

61770671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110280.

The product of its (nonzero) digits is 12348, while the sum is 35.

The square root of 61770671 is about 7859.4319769306. The cubic root of 61770671 is about 395.3005691775.

The spelling of 61770671 in words is "sixty-one million, seven hundred seventy thousand, six hundred seventy-one".