774220646 has 8 divisors (see below), whose sum is σ = 1165435464. Its totient is φ = 385742160.

The previous prime is 774220637. The next prime is 774220673. The reversal of 774220646 is 646022477.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 683375 + ... + 684506.

It is an arithmetic number, because the mean of its divisors is an integer number (145679433).

Almost surely, 2^774220646 is an apocalyptic number.

774220646 is a deficient number, since it is larger than the sum of its proper divisors (391214818).

774220646 is a wasteful number, since it uses less digits than its factorization.

774220646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1368166.

The product of its (nonzero) digits is 112896, while the sum is 38.

The square root of 774220646 is about 27824.8206822614. The cubic root of 774220646 is about 918.2372698316.

The spelling of 774220646 in words is "seven hundred seventy-four million, two hundred twenty thousand, six hundred forty-six".