678462607 has 2 divisors, whose sum is σ = 678462608. Its totient is φ = 678462606.

The previous prime is 678462563. The next prime is 678462613. The reversal of 678462607 is 706264876.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-678462607 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (678462637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 339231303 + 339231304.

It is an arithmetic number, because the mean of its divisors is an integer number (339231304).

Almost surely, 2^678462607 is an apocalyptic number.

678462607 is a deficient number, since it is larger than the sum of its proper divisors (1).

678462607 is an equidigital number, since it uses as much as digits as its factorization.

678462607 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 677376, while the sum is 46.

The square root of 678462607 is about 26047.3147752316. The cubic root of 678462607 is about 878.7027230780.

The spelling of 678462607 in words is "six hundred seventy-eight million, four hundred sixty-two thousand, six hundred seven".