687070101 has 8 divisors (see below), whose sum is σ = 916229664. Its totient is φ = 457978640.

The previous prime is 687070091. The next prime is 687070123. The reversal of 687070101 is 101070786.

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

It is a cyclic number.

It is not a de Polignac number, because 687070101 - 2⁶ = 687070037 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (687070201) 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, 15271 + ... + 40091.

It is an arithmetic number, because the mean of its divisors is an integer number (114528708).

Almost surely, 2^687070101 is an apocalyptic number.

It is an amenable number.

687070101 is a deficient number, since it is larger than the sum of its proper divisors (229159563).

687070101 is a wasteful number, since it uses less digits than its factorization.

687070101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34051.

The product of its (nonzero) digits is 2352, while the sum is 30.

The square root of 687070101 is about 26212.0220700350. The cubic root of 687070101 is about 882.4030826593.

The spelling of 687070101 in words is "six hundred eighty-seven million, seventy thousand, one hundred one".