87506742 has 16 divisors (see below), whose sum is σ = 184224960. Its totient is φ = 27633672.

The previous prime is 87506737. The next prime is 87506747. The reversal of 87506742 is 24760578.

It is an interprime number because it is at equal distance from previous prime (87506737) and next prime (87506747).

It is a self number, because there is not a number n which added to its sum of digits gives 87506742.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87506747) 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 7 ways as a sum of consecutive naturals, for example, 383688 + ... + 383915.

It is an arithmetic number, because the mean of its divisors is an integer number (11514060).

Almost surely, 2^87506742 is an apocalyptic number.

87506742 is an abundant number, since it is smaller than the sum of its proper divisors (96718218).

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

87506742 is a wasteful number, since it uses less digits than its factorization.

87506742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 767627.

The product of its (nonzero) digits is 94080, while the sum is 39.

The square root of 87506742 is about 9354.5038350519. The cubic root of 87506742 is about 443.9634029571.

The spelling of 87506742 in words is "eighty-seven million, five hundred six thousand, seven hundred forty-two".