70278 has 32 divisors (see below), whose sum is σ = 163296. Its totient is φ = 19968.

The previous prime is 70271. The next prime is 70289. The reversal of 70278 is 87207.

It is a Curzon number.

It is a plaindrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1300 + ... + 1352.

It is an arithmetic number, because the mean of its divisors is an integer number (5103).

2⁷⁰²⁷⁸ is an apocalyptic number.

70278 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 70278, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81648).

70278 is an abundant number, since it is smaller than the sum of its proper divisors (93018).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70278 is a wasteful number, since it uses less digits than its factorization.

70278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88.

The product of its (nonzero) digits is 784, while the sum is 24.

The square root of 70278 is about 265.0999811392. The cubic root of 70278 is about 41.2673389000.

It can be divided in two parts, 702 and 78, that multiplied together give a square (54756 = 234²).

The spelling of 70278 in words is "seventy thousand, two hundred seventy-eight".