70782078 has 8 divisors (see below), whose sum is σ = 141564168. Its totient is φ = 23594024.

The previous prime is 70782071. The next prime is 70782091. The reversal of 70782078 is 87028707.

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

70782078 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70782071) 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, 5898501 + ... + 5898512.

It is an arithmetic number, because the mean of its divisors is an integer number (17695521).

Almost surely, 2^70782078 is an apocalyptic number.

70782078 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

70782078 is a wasteful number, since it uses less digits than its factorization.

70782078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11797018.

The product of its (nonzero) digits is 43904, while the sum is 39.

The square root of 70782078 is about 8413.2085437127. The cubic root of 70782078 is about 413.6576903928.

The spelling of 70782078 in words is "seventy million, seven hundred eighty-two thousand, seventy-eight".