87467858 has 4 divisors (see below), whose sum is σ = 131201790. Its totient is φ = 43733928.

The previous prime is 87467851. The next prime is 87467869. The reversal of 87467858 is 85876478.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 85876478 = 2 ⋅42938239.

It can be written as a sum of positive squares in only one way, i.e., 76090729 + 11377129 = 8723^2 + 3373^2 .

It is not an unprimeable number, because it can be changed into a prime (87467851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21866963 + ... + 21866966.

Almost surely, 2^87467858 is an apocalyptic number.

87467858 is a deficient number, since it is larger than the sum of its proper divisors (43733932).

87467858 is a wasteful number, since it uses less digits than its factorization.

87467858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43733931.

The product of its digits is 3010560, while the sum is 53.

The square root of 87467858 is about 9352.4252469613. The cubic root of 87467858 is about 443.8976341939.

The spelling of 87467858 in words is "eighty-seven million, four hundred sixty-seven thousand, eight hundred fifty-eight".