776011945 has 8 divisors (see below), whose sum is σ = 931774536. Its totient is φ = 620436096.

The previous prime is 776011939. The next prime is 776011949. The reversal of 776011945 is 549110677.

It can be written as a sum of positive squares in 4 ways, for example, as 30503529 + 745508416 = 5523^2 + 27304^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 776011945 - 2⁵ = 776011913 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 776011898 and 776011907.

It is not an unprimeable number, because it can be changed into a prime (776011949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37372 + ... + 54301.

It is an arithmetic number, because the mean of its divisors is an integer number (116471817).

Almost surely, 2^776011945 is an apocalyptic number.

It is an amenable number.

776011945 is a deficient number, since it is larger than the sum of its proper divisors (155762591).

776011945 is a wasteful number, since it uses less digits than its factorization.

776011945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93371.

The product of its (nonzero) digits is 52920, while the sum is 40.

The square root of 776011945 is about 27856.9909537983. The cubic root of 776011945 is about 918.9448935119.

The spelling of 776011945 in words is "seven hundred seventy-six million, eleven thousand, nine hundred forty-five".