770628642 has 16 divisors (see below), whose sum is σ = 1761436992. Its totient is φ = 220179600.

The previous prime is 770628641. The next prime is 770628643. The reversal of 770628642 is 246826077.

It is an interprime number because it is at equal distance from previous prime (770628641) and next prime (770628643).

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 18348301 = 770628642 / (7 + 7 + 0 + 6 + 2 + 8 + 6 + 4 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 770628594 and 770628603.

It is not an unprimeable number, because it can be changed into a prime (770628641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9174109 + ... + 9174192.

It is an arithmetic number, because the mean of its divisors is an integer number (110089812).

Almost surely, 2^770628642 is an apocalyptic number.

770628642 is an abundant number, since it is smaller than the sum of its proper divisors (990808350).

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

770628642 is a wasteful number, since it uses less digits than its factorization.

770628642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18348313.

The product of its (nonzero) digits is 225792, while the sum is 42.

The square root of 770628642 is about 27760.1988825729. The cubic root of 770628642 is about 916.8150112023.

The spelling of 770628642 in words is "seven hundred seventy million, six hundred twenty-eight thousand, six hundred forty-two".