774222313 has 8 divisors (see below), whose sum is σ = 827287560. Its totient is φ = 721992960.

The previous prime is 774222307. The next prime is 774222349. The reversal of 774222313 is 313222477.

It can be written as a sum of positive squares in 4 ways, for example, as 195916009 + 578306304 = 13997^2 + 24048^2 .

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 774222313 - 2²⁵ = 740667881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (774222913) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 207058 + ... + 210763.

It is an arithmetic number, because the mean of its divisors is an integer number (103410945).

Almost surely, 2^774222313 is an apocalyptic number.

It is an amenable number.

774222313 is a deficient number, since it is larger than the sum of its proper divisors (53065247).

774222313 is a wasteful number, since it uses less digits than its factorization.

774222313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417947.

The product of its digits is 14112, while the sum is 31.

The square root of 774222313 is about 27824.8506375147. The cubic root of 774222313 is about 918.2379288601.

The spelling of 774222313 in words is "seven hundred seventy-four million, two hundred twenty-two thousand, three hundred thirteen".