87290459 has 2 divisors, whose sum is σ = 87290460. Its totient is φ = 87290458.

The previous prime is 87290443. The next prime is 87290479. The reversal of 87290459 is 95409278.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87290459 - 2⁴ = 87290443 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (87290419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43645229 + 43645230.

It is an arithmetic number, because the mean of its divisors is an integer number (43645230).

Almost surely, 2^87290459 is an apocalyptic number.

87290459 is a deficient number, since it is larger than the sum of its proper divisors (1).

87290459 is an equidigital number, since it uses as much as digits as its factorization.

87290459 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 87290459 is about 9342.9363157414. The cubic root of 87290459 is about 443.5973322868.

The spelling of 87290459 in words is "eighty-seven million, two hundred ninety thousand, four hundred fifty-nine".