687274433 has 8 divisors (see below), whose sum is σ = 709767936. Its totient is φ = 664801200.

The previous prime is 687274429. The next prime is 687274447. The reversal of 687274433 is 334472786.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 687274433 - 2² = 687274429 is a prime.

It is a super-2 number, since 2×687274433² = 944692292510942978, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (687274463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96410 + ... + 103292.

It is an arithmetic number, because the mean of its divisors is an integer number (88720992).

Almost surely, 2^687274433 is an apocalyptic number.

It is an amenable number.

687274433 is a deficient number, since it is larger than the sum of its proper divisors (22493503).

687274433 is a wasteful number, since it uses less digits than its factorization.

687274433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10135.

The product of its digits is 677376, while the sum is 44.

The square root of 687274433 is about 26215.9194574594. The cubic root of 687274433 is about 882.4905484145.

The spelling of 687274433 in words is "six hundred eighty-seven million, two hundred seventy-four thousand, four hundred thirty-three".