77056401 has 8 divisors (see below), whose sum is σ = 102963744. Its totient is φ = 51260000.

The previous prime is 77056373. The next prime is 77056403. The reversal of 77056401 is 10465077.

It is a happy number.

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 77056401 - 2⁶ = 77056337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (77056403) 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, 26100 + ... + 28901.

It is an arithmetic number, because the mean of its divisors is an integer number (12870468).

Almost surely, 2^77056401 is an apocalyptic number.

It is an amenable number.

77056401 is a deficient number, since it is larger than the sum of its proper divisors (25907343).

77056401 is a wasteful number, since it uses less digits than its factorization.

77056401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55471.

The product of its (nonzero) digits is 5880, while the sum is 30.

The square root of 77056401 is about 8778.1775443426. The cubic root of 77056401 is about 425.5359347319.

The spelling of 77056401 in words is "seventy-seven million, fifty-six thousand, four hundred one".