774611690 has 16 divisors (see below), whose sum is σ = 1398705192. Its totient is φ = 308865984.

The previous prime is 774611597. The next prime is 774611713. The reversal of 774611690 is 96116477.

It can be written as a sum of positive squares in 4 ways, for example, as 544148929 + 230462761 = 23327^2 + 15181^2 .

It is a super-2 number, since 2×774611690² = 1200046540569312200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119009 + ... + 125348.

Almost surely, 2^774611690 is an apocalyptic number.

774611690 is a deficient number, since it is larger than the sum of its proper divisors (624093502).

774611690 is a wasteful number, since it uses less digits than its factorization.

774611690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244681.

The product of its (nonzero) digits is 63504, while the sum is 41.

The square root of 774611690 is about 27831.8466868442. The cubic root of 774611690 is about 918.3918384896.

The spelling of 774611690 in words is "seven hundred seventy-four million, six hundred eleven thousand, six hundred ninety".