772161369 has 32 divisors (see below), whose sum is σ = 1262949120. Its totient is φ = 409577472.

The previous prime is 772161353. The next prime is 772161373. The reversal of 772161369 is 963161277.

It is not a de Polignac number, because 772161369 - 2⁴ = 772161353 is a prime.

It is a super-2 number, since 2×772161369² = 1192466359551908322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 772161369.

It is not an unprimeable number, because it can be changed into a prime (772161329) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11247 + ... + 40875.

It is an arithmetic number, because the mean of its divisors is an integer number (39467160).

Almost surely, 2^772161369 is an apocalyptic number.

It is an amenable number.

772161369 is a deficient number, since it is larger than the sum of its proper divisors (490787751).

772161369 is a wasteful number, since it uses less digits than its factorization.

772161369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29729.

The product of its digits is 95256, while the sum is 42.

The square root of 772161369 is about 27787.7917258641. The cubic root of 772161369 is about 917.4224358598.

The spelling of 772161369 in words is "seven hundred seventy-two million, one hundred sixty-one thousand, three hundred sixty-nine".