87940801 has 8 divisors (see below), whose sum is σ = 95644584. Its totient is φ = 80371200.

The previous prime is 87940763. The next prime is 87940819. The reversal of 87940801 is 10804978.

It can be written as a sum of positive squares in 4 ways, for example, as 2563201 + 85377600 = 1601^2 + 9240^2 .

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

It is not a de Polignac number, because 87940801 - 2²¹ = 85843649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87940861) 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, 32176 + ... + 34801.

It is an arithmetic number, because the mean of its divisors is an integer number (11955573).

Almost surely, 2^87940801 is an apocalyptic number.

It is an amenable number.

87940801 is a deficient number, since it is larger than the sum of its proper divisors (7703783).

87940801 is a wasteful number, since it uses less digits than its factorization.

87940801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67091.

The product of its (nonzero) digits is 16128, while the sum is 37.

The square root of 87940801 is about 9377.6756715084. The cubic root of 87940801 is about 444.6962552873.

The spelling of 87940801 in words is "eighty-seven million, nine hundred forty thousand, eight hundred one".