770107638 has 32 divisors (see below), whose sum is σ = 1558811520. Its totient is φ = 253612800.

The previous prime is 770107631. The next prime is 770107651. The reversal of 770107638 is 836701077.

It is a junction number, because it is equal to n+sod(n) for n = 770107596 and 770107605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (770107631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 611053 + ... + 612311.

It is an arithmetic number, because the mean of its divisors is an integer number (48712860).

Almost surely, 2^770107638 is an apocalyptic number.

770107638 is an abundant number, since it is smaller than the sum of its proper divisors (788703882).

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

770107638 is a wasteful number, since it uses less digits than its factorization.

770107638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2412.

The product of its (nonzero) digits is 49392, while the sum is 39.

The square root of 770107638 is about 27750.8132853796. The cubic root of 770107638 is about 916.6083522279.

It can be divided in two parts, 77010 and 7638, that added together give a palindrome (84648).

The spelling of 770107638 in words is "seven hundred seventy million, one hundred seven thousand, six hundred thirty-eight".