77328901 has 8 divisors (see below), whose sum is σ = 83575520. Its totient is φ = 71124912.

The previous prime is 77328899. The next prime is 77328919. The reversal of 77328901 is 10982377.

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 77328901 - 2¹ = 77328899 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 (77328931) 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, 6831 + ... + 14188.

It is an arithmetic number, because the mean of its divisors is an integer number (10446940).

Almost surely, 2^77328901 is an apocalyptic number.

It is an amenable number.

77328901 is a deficient number, since it is larger than the sum of its proper divisors (6246619).

77328901 is a wasteful number, since it uses less digits than its factorization.

77328901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21315.

The product of its (nonzero) digits is 21168, while the sum is 37.

The square root of 77328901 is about 8793.6852911621. The cubic root of 77328901 is about 426.0369621951.

The spelling of 77328901 in words is "seventy-seven million, three hundred twenty-eight thousand, nine hundred one".