3145678 has 8 divisors (see below), whose sum is σ = 4966920. Its totient is φ = 1490040.

The previous prime is 3145673. The next prime is 3145679. The reversal of 3145678 is 8765413.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3145673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41353 + ... + 41428.

It is an arithmetic number, because the mean of its divisors is an integer number (620865).

Almost surely, 2^3145678 is an apocalyptic number.

3145678 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

3145678 is a deficient number, since it is larger than the sum of its proper divisors (1821242).

3145678 is a wasteful number, since it uses less digits than its factorization.

3145678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82802.

The product of its digits is 20160, while the sum is 34.

The square root of 3145678 is about 1773.6059314290. The cubic root of 3145678 is about 146.5226467337.

The spelling of 3145678 in words is "three million, one hundred forty-five thousand, six hundred seventy-eight".