87140629 has 16 divisors (see below), whose sum is σ = 92856960. Its totient is φ = 81607680.

The previous prime is 87140567. The next prime is 87140653. The reversal of 87140629 is 92604178.

It is not a de Polignac number, because 87140629 - 2¹¹ = 87138581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87140689) 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, 309969 + ... + 310249.

It is an arithmetic number, because the mean of its divisors is an integer number (5803560).

Almost surely, 2^87140629 is an apocalyptic number.

It is an amenable number.

87140629 is a deficient number, since it is larger than the sum of its proper divisors (5716331).

87140629 is a wasteful number, since it uses less digits than its factorization.

87140629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 87140629 is about 9334.9145148737. The cubic root of 87140629 is about 443.3433822259.

The spelling of 87140629 in words is "eighty-seven million, one hundred forty thousand, six hundred twenty-nine".