87708479 has 2 divisors, whose sum is σ = 87708480. Its totient is φ = 87708478.

The previous prime is 87708473. The next prime is 87708493. The reversal of 87708479 is 97480778.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87708479 - 2¹⁶ = 87642943 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87708473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43854239 + 43854240.

It is an arithmetic number, because the mean of its divisors is an integer number (43854240).

Almost surely, 2^87708479 is an apocalyptic number.

87708479 is a deficient number, since it is larger than the sum of its proper divisors (1).

87708479 is an equidigital number, since it uses as much as digits as its factorization.

87708479 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 790272, while the sum is 50.

The square root of 87708479 is about 9365.2805083457. The cubic root of 87708479 is about 444.3043104290.

The spelling of 87708479 in words is "eighty-seven million, seven hundred eight thousand, four hundred seventy-nine".