87013742 has 4 divisors (see below), whose sum is σ = 130520616. Its totient is φ = 43506870.

The previous prime is 87013741. The next prime is 87013763. The reversal of 87013742 is 24731078.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24731078 = 2 ⋅12365539.

It is a junction number, because it is equal to n+sod(n) for n = 87013699 and 87013708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87013741) 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 as a sum of consecutive naturals, namely, 21753434 + ... + 21753437.

It is an arithmetic number, because the mean of its divisors is an integer number (32630154).

Almost surely, 2^87013742 is an apocalyptic number.

87013742 is a deficient number, since it is larger than the sum of its proper divisors (43506874).

87013742 is a wasteful number, since it uses less digits than its factorization.

87013742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43506873.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 87013742 is about 9328.1156725246. The cubic root of 87013742 is about 443.1280910010.

The spelling of 87013742 in words is "eighty-seven million, thirteen thousand, seven hundred forty-two".