774721427 has 8 divisors (see below), whose sum is σ = 778954800. Its totient is φ = 770495904.

The previous prime is 774721417. The next prime is 774721439. The reversal of 774721427 is 724127477.

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

It is a cyclic number.

It is not a de Polignac number, because 774721427 - 2¹⁰ = 774720403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (774721417) 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, 381188 + ... + 383214.

It is an arithmetic number, because the mean of its divisors is an integer number (97369350).

Almost surely, 2^774721427 is an apocalyptic number.

774721427 is a deficient number, since it is larger than the sum of its proper divisors (4233373).

774721427 is a wasteful number, since it uses less digits than its factorization.

774721427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3925.

The product of its digits is 153664, while the sum is 41.

The square root of 774721427 is about 27833.8180456796. The cubic root of 774721427 is about 918.4352050812.

The spelling of 774721427 in words is "seven hundred seventy-four million, seven hundred twenty-one thousand, four hundred twenty-seven".