770420641 has 16 divisors (see below), whose sum is σ = 805896000. Its totient is φ = 735594048.

The previous prime is 770420639. The next prime is 770420647. The reversal of 770420641 is 146024077.

It is not a de Polignac number, because 770420641 - 2¹ = 770420639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (770420647) 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, 1649490 + ... + 1649956.

It is an arithmetic number, because the mean of its divisors is an integer number (50368500).

Almost surely, 2^770420641 is an apocalyptic number.

It is an amenable number.

770420641 is a deficient number, since it is larger than the sum of its proper divisors (35475359).

770420641 is a wasteful number, since it uses less digits than its factorization.

770420641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1008.

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 770420641 is about 27756.4522408755. The cubic root of 770420641 is about 916.7325176862.

The spelling of 770420641 in words is "seven hundred seventy million, four hundred twenty thousand, six hundred forty-one".