769028285 has 4 divisors (see below), whose sum is σ = 922833948. Its totient is φ = 615222624.

The previous prime is 769028279. The next prime is 769028291. The reversal of 769028285 is 582820967.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 582820967 = 907 ⋅642581.

It is an interprime number because it is at equal distance from previous prime (769028279) and next prime (769028291).

It can be written as a sum of positive squares in 2 ways, for example, as 331130809 + 437897476 = 18197^2 + 20926^2 .

It is a cyclic number.

It is not a de Polignac number, because 769028285 - 2²⁴ = 752251069 is a prime.

It is a Duffinian number.

It is a Curzon number.

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, 76902824 + ... + 76902833.

It is an arithmetic number, because the mean of its divisors is an integer number (230708487).

Almost surely, 2^769028285 is an apocalyptic number.

It is an amenable number.

769028285 is a deficient number, since it is larger than the sum of its proper divisors (153805663).

769028285 is a wasteful number, since it uses less digits than its factorization.

769028285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153805662.

The product of its (nonzero) digits is 483840, while the sum is 47.

The square root of 769028285 is about 27731.3592346282. The cubic root of 769028285 is about 916.1799244364.

The spelling of 769028285 in words is "seven hundred sixty-nine million, twenty-eight thousand, two hundred eighty-five".