673669977 has 16 divisors (see below), whose sum is σ = 937941120. Its totient is φ = 429283712.

The previous prime is 673669973. The next prime is 673669979. The reversal of 673669977 is 779966376.

It is a cyclic number.

It is not a de Polignac number, because 673669977 - 2² = 673669973 is a prime.

It is a super-2 number, since 2×673669977² = 907662475822361058, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 673669977.

It is not an unprimeable number, because it can be changed into a prime (673669973) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135349 + ... + 140237.

It is an arithmetic number, because the mean of its divisors is an integer number (58621320).

Almost surely, 2^673669977 is an apocalyptic number.

It is an amenable number.

673669977 is a deficient number, since it is larger than the sum of its proper divisors (264271143).

673669977 is a wasteful number, since it uses less digits than its factorization.

673669977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6912.

The product of its digits is 18003384, while the sum is 60.

The square root of 673669977 is about 25955.1531877583. The cubic root of 673669977 is about 876.6287928784.

The spelling of 673669977 in words is "six hundred seventy-three million, six hundred sixty-nine thousand, nine hundred seventy-seven".