771082749 has 12 divisors (see below), whose sum is σ = 1114495200. Its totient is φ = 513727944.

The previous prime is 771082709. The next prime is 771082771. The reversal of 771082749 is 947280177.

It is a happy number.

It is not a de Polignac number, because 771082749 - 2⁷ = 771082621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (771082709) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11889 + ... + 41030.

It is an arithmetic number, because the mean of its divisors is an integer number (92874600).

Almost surely, 2^771082749 is an apocalyptic number.

It is an amenable number.

771082749 is a deficient number, since it is larger than the sum of its proper divisors (343412451).

771082749 is a wasteful number, since it uses less digits than its factorization.

771082749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54544 (or 54541 counting only the distinct ones).

The product of its (nonzero) digits is 197568, while the sum is 45.

The square root of 771082749 is about 27768.3767800712. The cubic root of 771082749 is about 916.9950591706.

The spelling of 771082749 in words is "seven hundred seventy-one million, eighty-two thousand, seven hundred forty-nine".