87958415 has 8 divisors (see below), whose sum is σ = 105621408. Its totient is φ = 70319200.

The previous prime is 87958411. The next prime is 87958441. The reversal of 87958415 is 51485978.

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

It is not a de Polignac number, because 87958415 - 2² = 87958411 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 87958415.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87958411) 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, 3590 + ... + 13740.

It is an arithmetic number, because the mean of its divisors is an integer number (13202676).

Almost surely, 2^87958415 is an apocalyptic number.

87958415 is a deficient number, since it is larger than the sum of its proper divisors (17662993).

87958415 is a wasteful number, since it uses less digits than its factorization.

87958415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11889.

The product of its digits is 403200, while the sum is 47.

The square root of 87958415 is about 9378.6147697834. The cubic root of 87958415 is about 444.7259432776.

The spelling of 87958415 in words is "eighty-seven million, nine hundred fifty-eight thousand, four hundred fifteen".