87242734 has 8 divisors (see below), whose sum is σ = 130915800. Its totient is φ = 43604136.

The previous prime is 87242731. The next prime is 87242761. The reversal of 87242734 is 43724278.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×87242734² = 15222589271589512, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 87242693 and 87242702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87242731) 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 3 ways as a sum of consecutive naturals, for example, 909 + ... + 13240.

It is an arithmetic number, because the mean of its divisors is an integer number (16364475).

Almost surely, 2^87242734 is an apocalyptic number.

87242734 is a deficient number, since it is larger than the sum of its proper divisors (43673066).

87242734 is a wasteful number, since it uses less digits than its factorization.

87242734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17234.

The product of its digits is 75264, while the sum is 37.

The square root of 87242734 is about 9340.3818979740. The cubic root of 87242734 is about 443.5164737281.

The spelling of 87242734 in words is "eighty-seven million, two hundred forty-two thousand, seven hundred thirty-four".