678050497 has 16 divisors (see below), whose sum is σ = 709188480. Its totient is φ = 647740800.

The previous prime is 678050459. The next prime is 678050591. The reversal of 678050497 is 794050876.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 678050497 - 2¹⁹ = 677526209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (678050407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 473779 + ... + 475207.

It is an arithmetic number, because the mean of its divisors is an integer number (44324280).

Almost surely, 2^678050497 is an apocalyptic number.

It is an amenable number.

678050497 is a deficient number, since it is larger than the sum of its proper divisors (31137983).

678050497 is a wasteful number, since it uses less digits than its factorization.

678050497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1704.

The product of its (nonzero) digits is 423360, while the sum is 46.

The square root of 678050497 is about 26039.4027773296. The cubic root of 678050497 is about 878.5247739324.

The spelling of 678050497 in words is "six hundred seventy-eight million, fifty thousand, four hundred ninety-seven".