87354839 has 16 divisors (see below), whose sum is σ = 102894624. Its totient is φ = 73113600.

The previous prime is 87354833. The next prime is 87354863. The reversal of 87354839 is 93845378.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87354839 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87354793 and 87354802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87354833) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 91187 + ... + 92139.

It is an arithmetic number, because the mean of its divisors is an integer number (6430914).

Almost surely, 2^87354839 is an apocalyptic number.

87354839 is a deficient number, since it is larger than the sum of its proper divisors (15539785).

87354839 is a wasteful number, since it uses less digits than its factorization.

87354839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1618.

The product of its digits is 725760, while the sum is 47.

The square root of 87354839 is about 9346.3810643478. The cubic root of 87354839 is about 443.7063620647.

The spelling of 87354839 in words is "eighty-seven million, three hundred fifty-four thousand, eight hundred thirty-nine".