77389001 has 2 divisors, whose sum is σ = 77389002. Its totient is φ = 77389000.

The previous prime is 77388973. The next prime is 77389007. The reversal of 77389001 is 10098377.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76125625 + 1263376 = 8725^2 + 1124^2 .

It is an emirp because it is prime and its reverse (10098377) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 77389001 - 2¹⁰ = 77387977 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (77389007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38694500 + 38694501.

It is an arithmetic number, because the mean of its divisors is an integer number (38694501).

Almost surely, 2^77389001 is an apocalyptic number.

It is an amenable number.

77389001 is a deficient number, since it is larger than the sum of its proper divisors (1).

77389001 is an equidigital number, since it uses as much as digits as its factorization.

77389001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10584, while the sum is 35.

The square root of 77389001 is about 8797.1018523148. The cubic root of 77389001 is about 426.1473055493.

The spelling of 77389001 in words is "seventy-seven million, three hundred eighty-nine thousand, one".