768890553 has 4 divisors (see below), whose sum is σ = 1025187408. Its totient is φ = 512593700.

The previous prime is 768890539. The next prime is 768890561. The reversal of 768890553 is 355098867.

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 768890553 - 2¹² = 768886457 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 768890496 and 768890505.

It is not an unprimeable number, because it can be changed into a prime (768890513) 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, 128148423 + ... + 128148428.

It is an arithmetic number, because the mean of its divisors is an integer number (256296852).

Almost surely, 2^768890553 is an apocalyptic number.

It is an amenable number.

768890553 is a deficient number, since it is larger than the sum of its proper divisors (256296855).

768890553 is a wasteful number, since it uses less digits than its factorization.

768890553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256296854.

The product of its (nonzero) digits is 1814400, while the sum is 51.

The square root of 768890553 is about 27728.8757976230. The cubic root of 768890553 is about 916.1252256128.

The spelling of 768890553 in words is "seven hundred sixty-eight million, eight hundred ninety thousand, five hundred fifty-three".