87951653 has 2 divisors, whose sum is σ = 87951654. Its totient is φ = 87951652.

The previous prime is 87951649. The next prime is 87951667. The reversal of 87951653 is 35615978.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62378404 + 25573249 = 7898^2 + 5057^2 .

It is a cyclic number.

It is not a de Polignac number, because 87951653 - 2² = 87951649 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87951613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43975826 + 43975827.

It is an arithmetic number, because the mean of its divisors is an integer number (43975827).

Almost surely, 2^87951653 is an apocalyptic number.

It is an amenable number.

87951653 is a deficient number, since it is larger than the sum of its proper divisors (1).

87951653 is an equidigital number, since it uses as much as digits as its factorization.

87951653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 226800, while the sum is 44.

The square root of 87951653 is about 9378.2542618549. The cubic root of 87951653 is about 444.7145465515.

The spelling of 87951653 in words is "eighty-seven million, nine hundred fifty-one thousand, six hundred fifty-three".