88394521 has 2 divisors, whose sum is σ = 88394522. Its totient is φ = 88394520.

The previous prime is 88394461. The next prime is 88394539. The reversal of 88394521 is 12549388.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 80192025 + 8202496 = 8955^2 + 2864^2 .

It is a cyclic number.

It is not a de Polignac number, because 88394521 - 2¹⁷ = 88263449 is a prime.

It is not a weakly prime, because it can be changed into another prime (88394561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44197260 + 44197261.

It is an arithmetic number, because the mean of its divisors is an integer number (44197261).

Almost surely, 2^88394521 is an apocalyptic number.

It is an amenable number.

88394521 is a deficient number, since it is larger than the sum of its proper divisors (1).

88394521 is an equidigital number, since it uses as much as digits as its factorization.

88394521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69120, while the sum is 40.

The square root of 88394521 is about 9401.8360440927. The cubic root of 88394521 is about 445.4597294097.

The spelling of 88394521 in words is "eighty-eight million, three hundred ninety-four thousand, five hundred twenty-one".