87143446 has 8 divisors (see below), whose sum is σ = 140770224. Its totient is φ = 40220040.

The previous prime is 87143437. The next prime is 87143447. The reversal of 87143446 is 64434178.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87143447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1675810 + ... + 1675861.

It is an arithmetic number, because the mean of its divisors is an integer number (17596278).

Almost surely, 2^87143446 is an apocalyptic number.

87143446 is a deficient number, since it is larger than the sum of its proper divisors (53626778).

87143446 is a wasteful number, since it uses less digits than its factorization.

87143446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3351686.

The product of its digits is 64512, while the sum is 37.

The square root of 87143446 is about 9335.0653988068. The cubic root of 87143446 is about 443.3481595032.

The spelling of 87143446 in words is "eighty-seven million, one hundred forty-three thousand, four hundred forty-six".