87493746 has 16 divisors (see below), whose sum is σ = 184197600. Its totient is φ = 27629568.

The previous prime is 87493697. The next prime is 87493751. The reversal of 87493746 is 64739478.

It is a happy number.

It is a super-2 number, since 2×87493746² = 15310311178225032, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 87493695 and 87493704.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 383631 + ... + 383858.

It is an arithmetic number, because the mean of its divisors is an integer number (11512350).

Almost surely, 2^87493746 is an apocalyptic number.

87493746 is an abundant number, since it is smaller than the sum of its proper divisors (96703854).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87493746 is a wasteful number, since it uses less digits than its factorization.

87493746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 767513.

The product of its digits is 1016064, while the sum is 48.

The square root of 87493746 is about 9353.8091706000. The cubic root of 87493746 is about 443.9414235686.

The spelling of 87493746 in words is "eighty-seven million, four hundred ninety-three thousand, seven hundred forty-six".