87158468 has 6 divisors (see below), whose sum is σ = 152527326. Its totient is φ = 43579232.

The previous prime is 87158459. The next prime is 87158479. The reversal of 87158468 is 86485178.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 84309124 + 2849344 = 9182^2 + 1688^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10894805 + ... + 10894812.

It is an arithmetic number, because the mean of its divisors is an integer number (25421221).

Almost surely, 2^87158468 is an apocalyptic number.

It is an amenable number.

87158468 is a deficient number, since it is larger than the sum of its proper divisors (65368858).

87158468 is a wasteful number, since it uses less digits than its factorization.

87158468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21789621 (or 21789619 counting only the distinct ones).

The product of its digits is 430080, while the sum is 47.

The square root of 87158468 is about 9335.8699648185. The cubic root of 87158468 is about 443.3736331856.

The spelling of 87158468 in words is "eighty-seven million, one hundred fifty-eight thousand, four hundred sixty-eight".