70780772 has 12 divisors (see below), whose sum is σ = 123927216. Its totient is φ = 35373000.

The previous prime is 70780771. The next prime is 70780817. The reversal of 70780772 is 27708707.

It is not an unprimeable number, because it can be changed into a prime (70780771) 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, 10283 + ... + 15725.

It is an arithmetic number, because the mean of its divisors is an integer number (10327268).

Almost surely, 2^70780772 is an apocalyptic number.

It is an amenable number.

70780772 is a deficient number, since it is larger than the sum of its proper divisors (53146444).

70780772 is a wasteful number, since it uses less digits than its factorization.

70780772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8698 (or 8696 counting only the distinct ones).

The product of its (nonzero) digits is 38416, while the sum is 38.

The square root of 70780772 is about 8413.1309273064. The cubic root of 70780772 is about 413.6551462447.

The spelling of 70780772 in words is "seventy million, seven hundred eighty thousand, seven hundred seventy-two".