687080363 has 4 divisors (see below), whose sum is σ = 687409800. Its totient is φ = 686750928.

The previous prime is 687080321. The next prime is 687080369. The reversal of 687080363 is 363080786.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 363080786 = 2 ⋅181540393.

It is a cyclic number.

It is not a de Polignac number, because 687080363 - 2¹⁸ = 686818219 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 687080363.

It is not an unprimeable number, because it can be changed into a prime (687080369) 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, 161570 + ... + 165767.

It is an arithmetic number, because the mean of its divisors is an integer number (171852450).

Almost surely, 2^687080363 is an apocalyptic number.

687080363 is a deficient number, since it is larger than the sum of its proper divisors (329437).

687080363 is a wasteful number, since it uses less digits than its factorization.

687080363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329436.

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 687080363 is about 26212.2178191774. The cubic root of 687080363 is about 882.4074757944.

The spelling of 687080363 in words is "six hundred eighty-seven million, eighty thousand, three hundred sixty-three".