687070023 has 16 divisors (see below), whose sum is σ = 932190336. Its totient is φ = 450015840.

The previous prime is 687069989. The next prime is 687070037. The reversal of 687070023 is 320070786.

It is not a de Polignac number, because 687070023 - 2⁶ = 687069959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (687070073) 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, 215640 + ... + 218802.

It is an arithmetic number, because the mean of its divisors is an integer number (58261896).

Almost surely, 2^687070023 is an apocalyptic number.

687070023 is a deficient number, since it is larger than the sum of its proper divisors (245120313).

687070023 is a wasteful number, since it uses less digits than its factorization.

687070023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4414.

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 687070023 is about 26212.0205821680. The cubic root of 687070023 is about 882.4030492676.

The spelling of 687070023 in words is "six hundred eighty-seven million, seventy thousand, twenty-three".