77016001 has 4 divisors (see below), whose sum is σ = 81546372. Its totient is φ = 72485632.

The previous prime is 77015989. The next prime is 77016007. The reversal of 77016001 is 10061077.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 60855601 + 16160400 = 7801^2 + 4020^2 .

It is a cyclic number.

It is not a de Polignac number, because 77016001 - 2⁵ = 77015969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77016007) 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 3 ways as a sum of consecutive naturals, for example, 2265160 + ... + 2265193.

It is an arithmetic number, because the mean of its divisors is an integer number (20386593).

Almost surely, 2^77016001 is an apocalyptic number.

It is an amenable number.

77016001 is a deficient number, since it is larger than the sum of its proper divisors (4530371).

77016001 is a wasteful number, since it uses less digits than its factorization.

77016001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4530370.

The product of its (nonzero) digits is 294, while the sum is 22.

The square root of 77016001 is about 8775.8760816228. The cubic root of 77016001 is about 425.4615534697.

Adding to 77016001 its reverse (10061077), we get a palindrome (87077078).

The spelling of 77016001 in words is "seventy-seven million, sixteen thousand, one".