772981396 has 18 divisors (see below), whose sum is σ = 1486872170. Its totient is φ = 351354960.

The previous prime is 772981387. The next prime is 772981403. The reversal of 772981396 is 693189277.

It can be written as a sum of positive squares in only one way, i.e., 545876496 + 227104900 = 23364^2 + 15070^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 798051 + ... + 799018.

Almost surely, 2^772981396 is an apocalyptic number.

It is an amenable number.

772981396 is a deficient number, since it is larger than the sum of its proper divisors (713890774).

772981396 is a wasteful number, since it uses less digits than its factorization.

772981396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1597095 (or 1597082 counting only the distinct ones).

The product of its digits is 1143072, while the sum is 52.

The square root of 772981396 is about 27802.5429772170. The cubic root of 772981396 is about 917.7470851881.

It can be divided in two parts, 772981 and 396, that added together give a palindrome (773377).

The spelling of 772981396 in words is "seven hundred seventy-two million, nine hundred eighty-one thousand, three hundred ninety-six".