87242061 has 8 divisors (see below), whose sum is σ = 118294560. Its totient is φ = 57175472.

The previous prime is 87242027. The next prime is 87242069. The reversal of 87242061 is 16024278.

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

It is a cyclic number.

It is not a de Polignac number, because 87242061 - 2⁷ = 87241933 is a prime.

It is a super-2 number, since 2×87242061² = 15222354415055442, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87242069) 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, 246270 + ... + 246623.

It is an arithmetic number, because the mean of its divisors is an integer number (14786820).

Almost surely, 2^87242061 is an apocalyptic number.

It is an amenable number.

87242061 is a deficient number, since it is larger than the sum of its proper divisors (31052499).

87242061 is a wasteful number, since it uses less digits than its factorization.

87242061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492955.

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 87242061 is about 9340.3458715403. The cubic root of 87242061 is about 443.5153332803.

The spelling of 87242061 in words is "eighty-seven million, two hundred forty-two thousand, sixty-one".