60775661 has 4 divisors (see below), whose sum is σ = 63974400. Its totient is φ = 57576924.

The previous prime is 60775651. The next prime is 60775709. The reversal of 60775661 is 16657706.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-60775661 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 (60775651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1599341 + ... + 1599378.

It is an arithmetic number, because the mean of its divisors is an integer number (15993600).

Almost surely, 2^60775661 is an apocalyptic number.

It is an amenable number.

60775661 is a deficient number, since it is larger than the sum of its proper divisors (3198739).

60775661 is a wasteful number, since it uses less digits than its factorization.

60775661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3198738.

The product of its (nonzero) digits is 52920, while the sum is 38.

The square root of 60775661 is about 7795.8746141790. The cubic root of 60775661 is about 393.1665518294.

The spelling of 60775661 in words is "sixty million, seven hundred seventy-five thousand, six hundred sixty-one".