770704642 has 8 divisors (see below), whose sum is σ = 1156463100. Its totient is φ = 385216944.

The previous prime is 770704633. The next prime is 770704643. The reversal of 770704642 is 246407077.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 734355801 + 36348841 = 27099^2 + 6029^2 .

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

It is not an unprimeable number, because it can be changed into a prime (770704643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60417 + ... + 72052.

Almost surely, 2^770704642 is an apocalyptic number.

770704642 is a deficient number, since it is larger than the sum of its proper divisors (385758458).

770704642 is a wasteful number, since it uses less digits than its factorization.

770704642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135380.

The product of its (nonzero) digits is 65856, while the sum is 37.

The square root of 770704642 is about 27761.5677150985. The cubic root of 770704642 is about 916.8451492163.

The spelling of 770704642 in words is "seven hundred seventy million, seven hundred four thousand, six hundred forty-two".