120678647 has 2 divisors, whose sum is σ = 120678648. Its totient is φ = 120678646.

The previous prime is 120678617. The next prime is 120678653. The reversal of 120678647 is 746876021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 120678647 - 2⁸ = 120678391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120678617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60339323 + 60339324.

It is an arithmetic number, because the mean of its divisors is an integer number (60339324).

Almost surely, 2^120678647 is an apocalyptic number.

120678647 is a deficient number, since it is larger than the sum of its proper divisors (1).

120678647 is an equidigital number, since it uses as much as digits as its factorization.

120678647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112896, while the sum is 41.

The square root of 120678647 is about 10985.3833342310. The cubic root of 120678647 is about 494.1704938562.

The spelling of 120678647 in words is "one hundred twenty million, six hundred seventy-eight thousand, six hundred forty-seven".