87293399 has 2 divisors, whose sum is σ = 87293400. Its totient is φ = 87293398.

The previous prime is 87293389. The next prime is 87293411. The reversal of 87293399 is 99339278.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87293399 - 2⁴ = 87293383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87293309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43646699 + 43646700.

It is an arithmetic number, because the mean of its divisors is an integer number (43646700).

Almost surely, 2^87293399 is an apocalyptic number.

87293399 is a deficient number, since it is larger than the sum of its proper divisors (1).

87293399 is an equidigital number, since it uses as much as digits as its factorization.

87293399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 734832, while the sum is 50.

The square root of 87293399 is about 9343.0936525329. The cubic root of 87293399 is about 443.6023124474.

The spelling of 87293399 in words is "eighty-seven million, two hundred ninety-three thousand, three hundred ninety-nine".