77901161 has 8 divisors (see below), whose sum is σ = 87541440. Its totient is φ = 68782032.

The previous prime is 77901151. The next prime is 77901193. The reversal of 77901161 is 16110977.

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 77901161 - 2⁶ = 77901097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77901151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129971 + ... + 130568.

It is an arithmetic number, because the mean of its divisors is an integer number (10942680).

Almost surely, 2^77901161 is an apocalyptic number.

It is an amenable number.

77901161 is a deficient number, since it is larger than the sum of its proper divisors (9640279).

77901161 is a wasteful number, since it uses less digits than its factorization.

77901161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260575.

The product of its (nonzero) digits is 2646, while the sum is 32.

The square root of 77901161 is about 8826.1634360576. The cubic root of 77901161 is about 427.0853195312.

The spelling of 77901161 in words is "seventy-seven million, nine hundred one thousand, one hundred sixty-one".