687012276 has 24 divisors (see below), whose sum is σ = 1606760064. Its totient is φ = 228471040.

The previous prime is 687012269. The next prime is 687012283. The reversal of 687012276 is 672210786.

It is an interprime number because it is at equal distance from previous prime (687012269) and next prime (687012283).

It is a congruent number.

It is an unprimeable number.

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, 61245 + ... + 71588.

It is an arithmetic number, because the mean of its divisors is an integer number (66948336).

Almost surely, 2^687012276 is an apocalyptic number.

It is an amenable number.

687012276 is an abundant number, since it is smaller than the sum of its proper divisors (919747788).

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

687012276 is a wasteful number, since it uses less digits than its factorization.

687012276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133271 (or 133269 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 687012276 is about 26210.9190224227. The cubic root of 687012276 is about 882.3783271117.

The spelling of 687012276 in words is "six hundred eighty-seven million, twelve thousand, two hundred seventy-six".