669760773 has 48 divisors (see below), whose sum is σ = 1039953600. Its totient is φ = 383122080.

The previous prime is 669760753. The next prime is 669760783. The reversal of 669760773 is 377067966.

It is not a de Polignac number, because 669760773 - 2⁶ = 669760709 is a prime.

It is a super-3 number, since 3×669760773³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (669760703) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2489683 + ... + 2489951.

It is an arithmetic number, because the mean of its divisors is an integer number (21665700).

Almost surely, 2^669760773 is an apocalyptic number.

It is an amenable number.

669760773 is a deficient number, since it is larger than the sum of its proper divisors (370192827).

669760773 is a wasteful number, since it uses less digits than its factorization.

669760773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351 (or 302 counting only the distinct ones).

The product of its (nonzero) digits is 2000376, while the sum is 51.

The square root of 669760773 is about 25879.7367258633. The cubic root of 669760773 is about 874.9298547306.

The spelling of 669760773 in words is "six hundred sixty-nine million, seven hundred sixty thousand, seven hundred seventy-three".