87452737 has 4 divisors (see below), whose sum is σ = 87492436. Its totient is φ = 87413040.

The previous prime is 87452671. The next prime is 87452741. The reversal of 87452737 is 73725478.

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 37834801 + 49617936 = 6151^2 + 7044^2 .

It is a cyclic number.

It is not a de Polignac number, because 87452737 - 2¹⁹ = 86928449 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87452693 and 87452702.

It is not an unprimeable number, because it can be changed into a prime (87452137) 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, 16338 + ... + 21019.

It is an arithmetic number, because the mean of its divisors is an integer number (21873109).

Almost surely, 2^87452737 is an apocalyptic number.

It is an amenable number.

87452737 is a deficient number, since it is larger than the sum of its proper divisors (39699).

87452737 is a wasteful number, since it uses less digits than its factorization.

87452737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39698.

The product of its digits is 329280, while the sum is 43.

The square root of 87452737 is about 9351.6168120812. The cubic root of 87452737 is about 443.8720531287.

The spelling of 87452737 in words is "eighty-seven million, four hundred fifty-two thousand, seven hundred thirty-seven".