685015629 has 8 divisors (see below), whose sum is σ = 967080960. Its totient is φ = 429813696.

The previous prime is 685015589. The next prime is 685015631. The reversal of 685015629 is 926510586.

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

It is not a de Polignac number, because 685015629 - 2⁷ = 685015501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (685015679) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6715789 + ... + 6715890.

It is an arithmetic number, because the mean of its divisors is an integer number (120885120).

Almost surely, 2^685015629 is an apocalyptic number.

It is an amenable number.

685015629 is a deficient number, since it is larger than the sum of its proper divisors (282065331).

685015629 is a wasteful number, since it uses less digits than its factorization.

685015629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13431699.

The product of its (nonzero) digits is 129600, while the sum is 42.

The square root of 685015629 is about 26172.8032315990. The cubic root of 685015629 is about 881.5226861384.

The spelling of 685015629 in words is "six hundred eighty-five million, fifteen thousand, six hundred twenty-nine".