70678 has 4 divisors (see below), whose sum is σ = 106020. Its totient is φ = 35338.

The previous prime is 70667. The next prime is 70687. The reversal of 70678 is 87607.

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

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, 17668 + ... + 17671.

It is an arithmetic number, because the mean of its divisors is an integer number (26505).

2⁷⁰⁶⁷⁸ is an apocalyptic number.

70678 is a deficient number, since it is larger than the sum of its proper divisors (35342).

70678 is a wasteful number, since it uses less digits than its factorization.

70678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35341.

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 70678 is about 265.8533430296. The cubic root of 70678 is about 41.3454843452.

It can be divided in two parts, 706 and 78, that added together give a square (784 = 28²).

The spelling of 70678 in words is "seventy thousand, six hundred seventy-eight".