87141746 has 4 divisors (see below), whose sum is σ = 130712622. Its totient is φ = 43570872.

The previous prime is 87141721. The next prime is 87141749. The reversal of 87141746 is 64714178.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64714178 = 2 ⋅32357089.

It can be written as a sum of positive squares in only one way, i.e., 82101721 + 5040025 = 9061^2 + 2245^2 .

It is not an unprimeable number, because it can be changed into a prime (87141749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21785435 + ... + 21785438.

Almost surely, 2^87141746 is an apocalyptic number.

87141746 is a deficient number, since it is larger than the sum of its proper divisors (43570876).

87141746 is a wasteful number, since it uses less digits than its factorization.

87141746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43570875.

The product of its digits is 37632, while the sum is 38.

The square root of 87141746 is about 9334.9743438319. The cubic root of 87141746 is about 443.3452765295.

The spelling of 87141746 in words is "eighty-seven million, one hundred forty-one thousand, seven hundred forty-six".