612349678 has 16 divisors (see below), whose sum is σ = 945728784. Its totient is φ = 297183040.

The previous prime is 612349663. The next prime is 612349679. The reversal of 612349678 is 876943216.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612349679) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2800 + ... + 35107.

It is an arithmetic number, because the mean of its divisors is an integer number (59108049).

Almost surely, 2^612349678 is an apocalyptic number.

612349678 is a deficient number, since it is larger than the sum of its proper divisors (333379106).

612349678 is a wasteful number, since it uses less digits than its factorization.

612349678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38147.

The product of its digits is 435456, while the sum is 46.

The square root of 612349678 is about 24745.7001921546. The cubic root of 612349678 is about 849.1801451155.

The spelling of 612349678 in words is "six hundred twelve million, three hundred forty-nine thousand, six hundred seventy-eight".