87093405 has 24 divisors (see below), whose sum is σ = 172528512. Its totient is φ = 39813984.

The previous prime is 87093403. The next prime is 87093407. The reversal of 87093405 is 50439078.

It is an interprime number because it is at equal distance from previous prime (87093403) and next prime (87093407).

It is not a de Polignac number, because 87093405 - 2¹ = 87093403 is a prime.

It is a super-2 number, since 2×87093405² = 15170522388988050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 87093405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87093403) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 137929 + ... + 138558.

It is an arithmetic number, because the mean of its divisors is an integer number (7188688).

Almost surely, 2^87093405 is an apocalyptic number.

It is an amenable number.

87093405 is a deficient number, since it is larger than the sum of its proper divisors (85435107).

87093405 is a wasteful number, since it uses less digits than its factorization.

87093405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276505 (or 276502 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 87093405 is about 9332.3847434619. The cubic root of 87093405 is about 443.2632809333.

The spelling of 87093405 in words is "eighty-seven million, ninety-three thousand, four hundred five".