772333645 has 4 divisors (see below), whose sum is σ = 926800380. Its totient is φ = 617866912.

The previous prime is 772333637. The next prime is 772333699. The reversal of 772333645 is 546333277.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 338486404 + 433847241 = 18398^2 + 20829^2 .

It is a cyclic number.

It is not a de Polignac number, because 772333645 - 2³ = 772333637 is a prime.

It is a super-3 number, since 3×772333645³ (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 772333598 and 772333607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77233360 + ... + 77233369.

It is an arithmetic number, because the mean of its divisors is an integer number (231700095).

Almost surely, 2^772333645 is an apocalyptic number.

It is an amenable number.

772333645 is a deficient number, since it is larger than the sum of its proper divisors (154466735).

772333645 is a wasteful number, since it uses less digits than its factorization.

772333645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154466734.

The product of its digits is 317520, while the sum is 40.

The square root of 772333645 is about 27790.8914034797. The cubic root of 772333645 is about 917.4906591273.

The spelling of 772333645 in words is "seven hundred seventy-two million, three hundred thirty-three thousand, six hundred forty-five".