87424406 has 4 divisors (see below), whose sum is σ = 131136612. Its totient is φ = 43712202.

The previous prime is 87424399. The next prime is 87424411. The reversal of 87424406 is 60442478.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60442478 = 2 ⋅30221239.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21856100 + ... + 21856103.

It is an arithmetic number, because the mean of its divisors is an integer number (32784153).

Almost surely, 2^87424406 is an apocalyptic number.

87424406 is a deficient number, since it is larger than the sum of its proper divisors (43712206).

87424406 is a wasteful number, since it uses less digits than its factorization.

87424406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43712205.

The product of its (nonzero) digits is 43008, while the sum is 35.

The square root of 87424406 is about 9350.1019245781. The cubic root of 87424406 is about 443.8241160075.

The spelling of 87424406 in words is "eighty-seven million, four hundred twenty-four thousand, four hundred six".