87339641 has 4 divisors (see below), whose sum is σ = 87792372. Its totient is φ = 86886912.

The previous prime is 87339611. The next prime is 87339653. The reversal of 87339641 is 14693378.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 46635241 + 40704400 = 6829^2 + 6380^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87339641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87339611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 226076 + ... + 226461.

It is an arithmetic number, because the mean of its divisors is an integer number (21948093).

Almost surely, 2^87339641 is an apocalyptic number.

It is an amenable number.

87339641 is a deficient number, since it is larger than the sum of its proper divisors (452731).

87339641 is a wasteful number, since it uses less digits than its factorization.

87339641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452730.

The product of its digits is 108864, while the sum is 41.

The square root of 87339641 is about 9345.5679870193. The cubic root of 87339641 is about 443.6806285527.

The spelling of 87339641 in words is "eighty-seven million, three hundred thirty-nine thousand, six hundred forty-one".