770681436 has 96 divisors (see below), whose sum is σ = 2142776832. Its totient is φ = 210988800.

The previous prime is 770681413. The next prime is 770681459. The reversal of 770681436 is 634186077.

It is an interprime number because it is at equal distance from previous prime (770681413) and next prime (770681459).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 206386 + ... + 210086.

It is an arithmetic number, because the mean of its divisors is an integer number (22320592).

Almost surely, 2^770681436 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 770681436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1071388416).

770681436 is an abundant number, since it is smaller than the sum of its proper divisors (1372095396).

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

770681436 is a wasteful number, since it uses less digits than its factorization.

770681436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3819 (or 3817 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 42.

The square root of 770681436 is about 27761.1497600514. The cubic root of 770681436 is about 916.8359470218.

The spelling of 770681436 in words is "seven hundred seventy million, six hundred eighty-one thousand, four hundred thirty-six".