140087679 has 16 divisors (see below), whose sum is σ = 191541504. Its totient is φ = 91022400.

The previous prime is 140087663. The next prime is 140087681. The reversal of 140087679 is 976780041.

It is not a de Polignac number, because 140087679 - 2⁴ = 140087663 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 140087679.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140087179) 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, 80539 + ... + 82259.

It is an arithmetic number, because the mean of its divisors is an integer number (11971344).

Almost surely, 2^140087679 is an apocalyptic number.

140087679 is a deficient number, since it is larger than the sum of its proper divisors (51453825).

140087679 is a wasteful number, since it uses less digits than its factorization.

140087679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2398.

The product of its (nonzero) digits is 84672, while the sum is 42.

The square root of 140087679 is about 11835.8641002675. The cubic root of 140087679 is about 519.3577858234.

The spelling of 140087679 in words is "one hundred forty million, eighty-seven thousand, six hundred seventy-nine".