77608007 has 2 divisors, whose sum is σ = 77608008. Its totient is φ = 77608006.

The previous prime is 77608001. The next prime is 77608019. The reversal of 77608007 is 70080677.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 77608007 - 2¹⁶ = 77542471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77608001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38804003 + 38804004.

It is an arithmetic number, because the mean of its divisors is an integer number (38804004).

Almost surely, 2^77608007 is an apocalyptic number.

77608007 is a deficient number, since it is larger than the sum of its proper divisors (1).

77608007 is an equidigital number, since it uses as much as digits as its factorization.

77608007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16464, while the sum is 35.

The square root of 77608007 is about 8809.5406804214. The cubic root of 77608007 is about 426.5489169562.

The spelling of 77608007 in words is "seventy-seven million, six hundred eight thousand, seven".