87251606 has 8 divisors (see below), whose sum is σ = 140944944. Its totient is φ = 40269960.

The previous prime is 87251603. The next prime is 87251611. The reversal of 87251606 is 60615278.

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

It is a super-2 number, since 2×87251606² = 15225685499158472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87251603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1677890 + ... + 1677941.

It is an arithmetic number, because the mean of its divisors is an integer number (17618118).

Almost surely, 2^87251606 is an apocalyptic number.

87251606 is a deficient number, since it is larger than the sum of its proper divisors (53693338).

87251606 is a wasteful number, since it uses less digits than its factorization.

87251606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3355846.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 87251606 is about 9340.8568129482. The cubic root of 87251606 is about 443.5315074338.

The spelling of 87251606 in words is "eighty-seven million, two hundred fifty-one thousand, six hundred six".