87734740 has 24 divisors (see below), whose sum is σ = 185423112. Its totient is φ = 34869120.

The previous prime is 87734729. The next prime is 87734753. The reversal of 87734740 is 4743778.

It can be written as a sum of positive squares in 4 ways, for example, as 3755844 + 83978896 = 1938^2 + 9164^2 .

It is a junction number, because it is equal to n+sod(n) for n = 87734693 and 87734702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10831 + ... + 17110.

It is an arithmetic number, because the mean of its divisors is an integer number (7725963).

Almost surely, 2^87734740 is an apocalyptic number.

It is an amenable number.

87734740 is an abundant number, since it is smaller than the sum of its proper divisors (97688372).

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

87734740 is a wasteful number, since it uses less digits than its factorization.

87734740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28107 (or 28105 counting only the distinct ones).

The product of its (nonzero) digits is 131712, while the sum is 40.

The square root of 87734740 is about 9366.6824436403. The cubic root of 87734740 is about 444.3486494002.

The spelling of 87734740 in words is "eighty-seven million, seven hundred thirty-four thousand, seven hundred forty".