87354493 has 2 divisors, whose sum is σ = 87354494. Its totient is φ = 87354492.

The previous prime is 87354461. The next prime is 87354499. The reversal of 87354493 is 39445378.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50168889 + 37185604 = 7083^2 + 6098^2 .

It is a cyclic number.

It is not a de Polignac number, because 87354493 - 2⁵ = 87354461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87354499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43677246 + 43677247.

It is an arithmetic number, because the mean of its divisors is an integer number (43677247).

Almost surely, 2^87354493 is an apocalyptic number.

It is an amenable number.

87354493 is a deficient number, since it is larger than the sum of its proper divisors (1).

87354493 is an equidigital number, since it uses as much as digits as its factorization.

87354493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880, while the sum is 43.

The square root of 87354493 is about 9346.3625544915. The cubic root of 87354493 is about 443.7057762448.

The spelling of 87354493 in words is "eighty-seven million, three hundred fifty-four thousand, four hundred ninety-three".