687413454 has 96 divisors (see below), whose sum is σ = 1769223456. Its totient is φ = 176359680.

The previous prime is 687413423. The next prime is 687413471. The reversal of 687413454 is 454314786.

687413454 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 138984 + ... + 143844.

It is an arithmetic number, because the mean of its divisors is an integer number (18429411).

Almost surely, 2^687413454 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 687413454, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (884611728).

687413454 is an abundant number, since it is smaller than the sum of its proper divisors (1081810002).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

687413454 is a wasteful number, since it uses less digits than its factorization.

687413454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4930 (or 4923 counting only the distinct ones).

The product of its digits is 322560, while the sum is 42.

The square root of 687413454 is about 26218.5707848464. The cubic root of 687413454 is about 882.5500474256.

The spelling of 687413454 in words is "six hundred eighty-seven million, four hundred thirteen thousand, four hundred fifty-four".