87741645 has 16 divisors (see below), whose sum is σ = 140502912. Its totient is φ = 46756800.

The previous prime is 87741637. The next prime is 87741649. The reversal of 87741645 is 54614778.

It is not a de Polignac number, because 87741645 - 2³ = 87741637 is a prime.

It is a super-3 number, since 3×87741645³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 87741597 and 87741606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87741649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33120 + ... + 35670.

It is an arithmetic number, because the mean of its divisors is an integer number (8781432).

Almost surely, 2^87741645 is an apocalyptic number.

It is an amenable number.

87741645 is a deficient number, since it is larger than the sum of its proper divisors (52761267).

87741645 is a wasteful number, since it uses less digits than its factorization.

87741645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4852.

The product of its digits is 188160, while the sum is 42.

The square root of 87741645 is about 9367.0510300734. The cubic root of 87741645 is about 444.3603063065.

The spelling of 87741645 in words is "eighty-seven million, seven hundred forty-one thousand, six hundred forty-five".