87494941 has 2 divisors, whose sum is σ = 87494942. Its totient is φ = 87494940.

The previous prime is 87494929. The next prime is 87494947. The reversal of 87494941 is 14949478.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57836025 + 29658916 = 7605^2 + 5446^2 .

It is a cyclic number.

It is not a de Polignac number, because 87494941 - 2²¹ = 85397789 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 87494891 and 87494900.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87494947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43747470 + 43747471.

It is an arithmetic number, because the mean of its divisors is an integer number (43747471).

Almost surely, 2^87494941 is an apocalyptic number.

It is an amenable number.

87494941 is a deficient number, since it is larger than the sum of its proper divisors (1).

87494941 is an equidigital number, since it uses as much as digits as its factorization.

87494941 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 290304, while the sum is 46.

The square root of 87494941 is about 9353.8730481015. The cubic root of 87494941 is about 443.9434446943.

The spelling of 87494941 in words is "eighty-seven million, four hundred ninety-four thousand, nine hundred forty-one".