87146893 has 8 divisors (see below), whose sum is σ = 89184888. Its totient is φ = 85123584.

The previous prime is 87146887. The next prime is 87146897. The reversal of 87146893 is 39864178.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 38663524 + 48483369 = 6218^2 + 6963^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 87146893 - 2⁵ = 87146861 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 (87146897) 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, 8821 + ... + 15877.

It is an arithmetic number, because the mean of its divisors is an integer number (11148111).

Almost surely, 2^87146893 is an apocalyptic number.

It is an amenable number.

87146893 is a deficient number, since it is larger than the sum of its proper divisors (2037995).

87146893 is a wasteful number, since it uses less digits than its factorization.

87146893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7343.

The product of its digits is 290304, while the sum is 46.

The square root of 87146893 is about 9335.2500234327. The cubic root of 87146893 is about 443.3540050411.

The spelling of 87146893 in words is "eighty-seven million, one hundred forty-six thousand, eight hundred ninety-three".