87412547 has 2 divisors, whose sum is σ = 87412548. Its totient is φ = 87412546.

The previous prime is 87412517. The next prime is 87412553. The reversal of 87412547 is 74521478.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87412547 - 2⁸ = 87412291 is a prime.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 87412547.

It is not a weakly prime, because it can be changed into another prime (87412517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43706273 + 43706274.

It is an arithmetic number, because the mean of its divisors is an integer number (43706274).

Almost surely, 2^87412547 is an apocalyptic number.

87412547 is a deficient number, since it is larger than the sum of its proper divisors (1).

87412547 is an equidigital number, since it uses as much as digits as its factorization.

87412547 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62720, while the sum is 38.

The square root of 87412547 is about 9349.4677388609. The cubic root of 87412547 is about 443.8040470572.

The spelling of 87412547 in words is "eighty-seven million, four hundred twelve thousand, five hundred forty-seven".