771238630 has 8 divisors (see below), whose sum is σ = 1388229552. Its totient is φ = 308495448.

The previous prime is 771238627. The next prime is 771238631. The reversal of 771238630 is 36832177.

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

It is a self number, because there is not a number n which added to its sum of digits gives 771238630.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (771238631) 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 3 ways as a sum of consecutive naturals, for example, 38561922 + ... + 38561941.

It is an arithmetic number, because the mean of its divisors is an integer number (173528694).

Almost surely, 2^771238630 is an apocalyptic number.

771238630 is a deficient number, since it is larger than the sum of its proper divisors (616990922).

771238630 is a wasteful number, since it uses less digits than its factorization.

771238630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77123870.

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 771238630 is about 27771.1834461551. The cubic root of 771238630 is about 917.0568478160.

The spelling of 771238630 in words is "seven hundred seventy-one million, two hundred thirty-eight thousand, six hundred thirty".