70781368 has 16 divisors (see below), whose sum is σ = 151674480. Its totient is φ = 30334848.

The previous prime is 70781363. The next prime is 70781369. The reversal of 70781368 is 86318707.

It is a zygodrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 70781368.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70781363) 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, 631921 + ... + 632032.

It is an arithmetic number, because the mean of its divisors is an integer number (9479655).

Almost surely, 2^70781368 is an apocalyptic number.

It is an amenable number.

70781368 is an abundant number, since it is smaller than the sum of its proper divisors (80893112).

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

70781368 is a wasteful number, since it uses less digits than its factorization.

70781368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1263966 (or 1263962 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 70781368 is about 8413.1663480523. The cubic root of 70781368 is about 413.6563072840.

The spelling of 70781368 in words is "seventy million, seven hundred eighty-one thousand, three hundred sixty-eight".