87048649 has 2 divisors, whose sum is σ = 87048650. Its totient is φ = 87048648.

The previous prime is 87048601. The next prime is 87048667. The reversal of 87048649 is 94684078.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47169424 + 39879225 = 6868^2 + 6315^2 .

It is a cyclic number.

It is not a de Polignac number, because 87048649 - 2¹⁵ = 87015881 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 87048599 and 87048608.

It is not a weakly prime, because it can be changed into another prime (87048349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43524324 + 43524325.

It is an arithmetic number, because the mean of its divisors is an integer number (43524325).

Almost surely, 2^87048649 is an apocalyptic number.

It is an amenable number.

87048649 is a deficient number, since it is larger than the sum of its proper divisors (1).

87048649 is an equidigital number, since it uses as much as digits as its factorization.

87048649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 387072, while the sum is 46.

The square root of 87048649 is about 9329.9865487577. The cubic root of 87048649 is about 443.1873391302.

The spelling of 87048649 in words is "eighty-seven million, forty-eight thousand, six hundred forty-nine".