87759642 has 16 divisors (see below), whose sum is σ = 177073920. Its totient is φ = 28994112.

The previous prime is 87759641. The next prime is 87759649. The reversal of 87759642 is 24695778.

It is a junction number, because it is equal to n+sod(n) for n = 87759591 and 87759600.

It is not an unprimeable number, because it can be changed into a prime (87759641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64042 + ... + 65397.

It is an arithmetic number, because the mean of its divisors is an integer number (11067120).

Almost surely, 2^87759642 is an apocalyptic number.

87759642 is an abundant number, since it is smaller than the sum of its proper divisors (89314278).

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

87759642 is a wasteful number, since it uses less digits than its factorization.

87759642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129557.

The product of its digits is 846720, while the sum is 48.

The square root of 87759642 is about 9368.0116353472. The cubic root of 87759642 is about 444.3906856690.

The spelling of 87759642 in words is "eighty-seven million, seven hundred fifty-nine thousand, six hundred forty-two".