4012678 has 4 divisors (see below), whose sum is σ = 6019020. Its totient is φ = 2006338.

The previous prime is 4012669. The next prime is 4012681. The reversal of 4012678 is 8762104.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×4012678² = 32203169463368, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1003168 + ... + 1003171.

It is an arithmetic number, because the mean of its divisors is an integer number (1504755).

Almost surely, 2^4012678 is an apocalyptic number.

4012678 is a deficient number, since it is larger than the sum of its proper divisors (2006342).

4012678 is a wasteful number, since it uses less digits than its factorization.

4012678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2006341.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 4012678 is about 2003.1669925396. The cubic root of 4012678 is about 158.9076372448.

It can be divided in two parts, 40126 and 78, that added together give a palindrome (40204).

The spelling of 4012678 in words is "four million, twelve thousand, six hundred seventy-eight".