77560901 has 4 divisors (see below), whose sum is σ = 84611904. Its totient is φ = 70509900.

The previous prime is 77560891. The next prime is 77560921. The reversal of 77560901 is 10906577.

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 not a de Polignac number, because 77560901 - 2¹⁰ = 77559877 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77560921) 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, 3525485 + ... + 3525506.

It is an arithmetic number, because the mean of its divisors is an integer number (21152976).

Almost surely, 2^77560901 is an apocalyptic number.

It is an amenable number.

77560901 is a deficient number, since it is larger than the sum of its proper divisors (7051003).

77560901 is a wasteful number, since it uses less digits than its factorization.

77560901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7051002.

The product of its (nonzero) digits is 13230, while the sum is 35.

The square root of 77560901 is about 8806.8666959368. The cubic root of 77560901 is about 426.4625981998.

The spelling of 77560901 in words is "seventy-seven million, five hundred sixty thousand, nine hundred one".