677609963 has 4 divisors (see below), whose sum is σ = 677708808. Its totient is φ = 677511120.

The previous prime is 677609957. The next prime is 677609981. The reversal of 677609963 is 369906776.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 677609963 - 2²⁴ = 660832747 is a prime.

It is a super-3 number, since 3×677609963³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (677609063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38306 + ... + 53127.

It is an arithmetic number, because the mean of its divisors is an integer number (169427202).

Almost surely, 2^677609963 is an apocalyptic number.

677609963 is a deficient number, since it is larger than the sum of its proper divisors (98845).

677609963 is an equidigital number, since it uses as much as digits as its factorization.

677609963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98844.

The product of its (nonzero) digits is 2571912, while the sum is 53.

The square root of 677609963 is about 26030.9424147494. The cubic root of 677609963 is about 878.3344715477.

The spelling of 677609963 in words is "six hundred seventy-seven million, six hundred nine thousand, nine hundred sixty-three".