87740715 has 8 divisors (see below), whose sum is σ = 140385168. Its totient is φ = 46795040.

The previous prime is 87740713. The next prime is 87740717. The reversal of 87740715 is 51704778.

It is an interprime number because it is at equal distance from previous prime (87740713) and next prime (87740717).

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

It is not a de Polignac number, because 87740715 - 2¹ = 87740713 is a prime.

It is a super-2 number, since 2×87740715² = 15396866137422450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (87740713) 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, 2924676 + ... + 2924705.

It is an arithmetic number, because the mean of its divisors is an integer number (17548146).

Almost surely, 2^87740715 is an apocalyptic number.

87740715 is a deficient number, since it is larger than the sum of its proper divisors (52644453).

87740715 is a wasteful number, since it uses less digits than its factorization.

87740715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5849389.

The product of its (nonzero) digits is 54880, while the sum is 39.

The square root of 87740715 is about 9367.0013878509. The cubic root of 87740715 is about 444.3587363316.

The spelling of 87740715 in words is "eighty-seven million, seven hundred forty thousand, seven hundred fifteen".