61775677 has 8 divisors (see below), whose sum is σ = 64620864. Its totient is φ = 58943808.

The previous prime is 61775657. The next prime is 61775689. The reversal of 61775677 is 77657716.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61775677 - 2¹⁵ = 61742909 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 (61775627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6858 + ... + 13060.

It is an arithmetic number, because the mean of its divisors is an integer number (8077608).

Almost surely, 2^61775677 is an apocalyptic number.

It is an amenable number.

61775677 is a deficient number, since it is larger than the sum of its proper divisors (2845187).

61775677 is a wasteful number, since it uses less digits than its factorization.

61775677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6659.

The product of its digits is 432180, while the sum is 46.

The square root of 61775677 is about 7859.7504413308. The cubic root of 61775677 is about 395.3112474987.

The spelling of 61775677 in words is "sixty-one million, seven hundred seventy-five thousand, six hundred seventy-seven".