87140337 has 4 divisors (see below), whose sum is σ = 116187120. Its totient is φ = 58093556.

The previous prime is 87140329. The next prime is 87140341. The reversal of 87140337 is 73304178.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 87140337 - 2³ = 87140329 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 87140298 and 87140307.

It is not an unprimeable number, because it can be changed into a prime (87148337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14523387 + ... + 14523392.

It is an arithmetic number, because the mean of its divisors is an integer number (29046780).

Almost surely, 2^87140337 is an apocalyptic number.

It is an amenable number.

87140337 is a deficient number, since it is larger than the sum of its proper divisors (29046783).

87140337 is a wasteful number, since it uses less digits than its factorization.

87140337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29046782.

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

The square root of 87140337 is about 9334.8988746531. The cubic root of 87140337 is about 443.3428870247.

The spelling of 87140337 in words is "eighty-seven million, one hundred forty thousand, three hundred thirty-seven".