77675651 has 2 divisors, whose sum is σ = 77675652. Its totient is φ = 77675650.

The previous prime is 77675639. The next prime is 77675657. The reversal of 77675651 is 15657677.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-77675651 is a prime.

It is not a weakly prime, because it can be changed into another prime (77675657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38837825 + 38837826.

It is an arithmetic number, because the mean of its divisors is an integer number (38837826).

Almost surely, 2^77675651 is an apocalyptic number.

77675651 is a deficient number, since it is larger than the sum of its proper divisors (1).

77675651 is an equidigital number, since it uses as much as digits as its factorization.

77675651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 308700, while the sum is 44.

The square root of 77675651 is about 8813.3790909049. The cubic root of 77675651 is about 426.6728092242.

The spelling of 77675651 in words is "seventy-seven million, six hundred seventy-five thousand, six hundred fifty-one".