3470680778 has 4 divisors (see below), whose sum is σ = 5206021170. Its totient is φ = 1735340388.

The previous prime is 3470680777. The next prime is 3470680789. The reversal of 3470680778 is 8770860743.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2970577009 + 500103769 = 54503^2 + 22363^2 .

It is not an unprimeable number, because it can be changed into a prime (3470680777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 867670193 + ... + 867670196.

Almost surely, 2^3470680778 is an apocalyptic number.

3470680778 is a deficient number, since it is larger than the sum of its proper divisors (1735340392).

3470680778 is a wasteful number, since it uses less digits than its factorization.

3470680778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1735340391.

The product of its (nonzero) digits is 1580544, while the sum is 50.

The square root of 3470680778 is about 58912.4840589836. The cubic root of 3470680778 is about 1514.0430483232.

The spelling of 3470680778 in words is "three billion, four hundred seventy million, six hundred eighty thousand, seven hundred seventy-eight".