687096431 has 16 divisors (see below), whose sum is σ = 827842560. Its totient is φ = 557807040.

The previous prime is 687096413. The next prime is 687096437. The reversal of 687096431 is 134690786.

687096431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 687096431 - 2²² = 682902127 is a prime.

It is a super-2 number, since 2×687096431² = 944203010985875522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (687096437) 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, 23486 + ... + 43883.

It is an arithmetic number, because the mean of its divisors is an integer number (51740160).

Almost surely, 2^687096431 is an apocalyptic number.

687096431 is a deficient number, since it is larger than the sum of its proper divisors (140746129).

687096431 is a wasteful number, since it uses less digits than its factorization.

687096431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67454.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 687096431 is about 26212.5243156778. The cubic root of 687096431 is about 882.4143543749.

It can be divided in two parts, 6870 and 96431, that added together give a palindrome (103301).

The spelling of 687096431 in words is "six hundred eighty-seven million, ninety-six thousand, four hundred thirty-one".