769291057 has 4 divisors (see below), whose sum is σ = 809780080. Its totient is φ = 728802036.

The previous prime is 769291001. The next prime is 769291063. The reversal of 769291057 is 750192967.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 750192967 = 29 ⋅25868723.

It is a cyclic number.

It is not a de Polignac number, because 769291057 - 2¹¹ = 769289009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 769290998 and 769291016.

It is not an unprimeable number, because it can be changed into a prime (769291067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20244483 + ... + 20244520.

It is an arithmetic number, because the mean of its divisors is an integer number (202445020).

Almost surely, 2^769291057 is an apocalyptic number.

It is an amenable number.

769291057 is a deficient number, since it is larger than the sum of its proper divisors (40489023).

769291057 is a wasteful number, since it uses less digits than its factorization.

769291057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40489022.

The product of its (nonzero) digits is 238140, while the sum is 46.

The square root of 769291057 is about 27736.0966431832. The cubic root of 769291057 is about 916.2842634750.

It can be divided in two parts, 7692910 and 57, that added together give a palindrome (7692967).

The spelling of 769291057 in words is "seven hundred sixty-nine million, two hundred ninety-one thousand, fifty-seven".