774138963 has 16 divisors (see below), whose sum is σ = 1149916320. Its totient is φ = 459965184.

The previous prime is 774138929. The next prime is 774138977. The reversal of 774138963 is 369831477.

It is not a de Polignac number, because 774138963 - 2¹³ = 774130771 is a prime.

It is a super-2 number, since 2×774138963² = 1198582268069430738, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (774138923) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 341106 + ... + 343367.

It is an arithmetic number, because the mean of its divisors is an integer number (71869770).

Almost surely, 2^774138963 is an apocalyptic number.

774138963 is a deficient number, since it is larger than the sum of its proper divisors (375777357).

774138963 is a wasteful number, since it uses less digits than its factorization.

774138963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684518.

The product of its digits is 762048, while the sum is 48.

The square root of 774138963 is about 27823.3528353432. The cubic root of 774138963 is about 918.2049762759.

The spelling of 774138963 in words is "seven hundred seventy-four million, one hundred thirty-eight thousand, nine hundred sixty-three".