87106403 has 2 divisors, whose sum is σ = 87106404. Its totient is φ = 87106402.

The previous prime is 87106273. The next prime is 87106429. The reversal of 87106403 is 30460178.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87106403 - 2¹⁸ = 86844259 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (87106493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43553201 + 43553202.

It is an arithmetic number, because the mean of its divisors is an integer number (43553202).

Almost surely, 2^87106403 is an apocalyptic number.

87106403 is a deficient number, since it is larger than the sum of its proper divisors (1).

87106403 is an equidigital number, since it uses as much as digits as its factorization.

87106403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 87106403 is about 9333.0811096872. The cubic root of 87106403 is about 443.2853310129.

The spelling of 87106403 in words is "eighty-seven million, one hundred six thousand, four hundred three".