87297601 has 4 divisors (see below), whose sum is σ = 92432772. Its totient is φ = 82162432.

The previous prime is 87297589. The next prime is 87297619. The reversal of 87297601 is 10679278.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 65999376 + 21298225 = 8124^2 + 4615^2 .

It is a cyclic number.

It is not a de Polignac number, because 87297601 - 2⁷ = 87297473 is a prime.

It is a super-2 number, since 2×87297601² = 15241742280710402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87297101) 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, 2567560 + ... + 2567593.

It is an arithmetic number, because the mean of its divisors is an integer number (23108193).

Almost surely, 2^87297601 is an apocalyptic number.

It is an amenable number.

87297601 is a deficient number, since it is larger than the sum of its proper divisors (5135171).

87297601 is a wasteful number, since it uses less digits than its factorization.

87297601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5135170.

The product of its (nonzero) digits is 42336, while the sum is 40.

The square root of 87297601 is about 9343.3185218101. The cubic root of 87297601 is about 443.6094301563.

The spelling of 87297601 in words is "eighty-seven million, two hundred ninety-seven thousand, six hundred one".