70786716 has 192 divisors, whose sum is σ = 227598336. Its totient is φ = 16531200.

The previous prime is 70786711. The next prime is 70786717. The reversal of 70786716 is 61768707.

It is a super-3 number, since 3×70786716³ (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70786711) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 852811 + ... + 852893.

It is an arithmetic number, because the mean of its divisors is an integer number (1185408).

Almost surely, 2^70786716 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70786716, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113799168).

70786716 is an abundant number, since it is smaller than the sum of its proper divisors (156811620).

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

70786716 is a wasteful number, since it uses less digits than its factorization.

70786716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192 (or 190 counting only the distinct ones).

The product of its (nonzero) digits is 98784, while the sum is 42.

The square root of 70786716 is about 8413.4841772003. The cubic root of 70786716 is about 413.6667251773. Note that the first 3 decimals are identical.

Subtracting from 70786716 its reverse (61768707), we obtain a square (9018009 = 3003²).

The spelling of 70786716 in words is "seventy million, seven hundred eighty-six thousand, seven hundred sixteen".