771057013 has 4 divisors (see below), whose sum is σ = 773536608. Its totient is φ = 768577420.

The previous prime is 771056983. The next prime is 771057061. The reversal of 771057013 is 310750177.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 771057013 - 2⁹ = 771056501 is a prime.

It is a super-3 number, since 3×771057013³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (771057113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1239331 + ... + 1239952.

It is an arithmetic number, because the mean of its divisors is an integer number (193384152).

Almost surely, 2^771057013 is an apocalyptic number.

It is an amenable number.

771057013 is a deficient number, since it is larger than the sum of its proper divisors (2479595).

771057013 is a wasteful number, since it uses less digits than its factorization.

771057013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2479594.

The product of its (nonzero) digits is 5145, while the sum is 31.

The square root of 771057013 is about 27767.9133713716. The cubic root of 771057013 is about 916.9848570458.

The spelling of 771057013 in words is "seven hundred seventy-one million, fifty-seven thousand, thirteen".