87112783 has 2 divisors, whose sum is σ = 87112784. Its totient is φ = 87112782.

The previous prime is 87112757. The next prime is 87112789. The reversal of 87112783 is 38721178.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87112783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87112789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43556391 + 43556392.

It is an arithmetic number, because the mean of its divisors is an integer number (43556392).

Almost surely, 2^87112783 is an apocalyptic number.

87112783 is a deficient number, since it is larger than the sum of its proper divisors (1).

87112783 is an equidigital number, since it uses as much as digits as its factorization.

87112783 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18816, while the sum is 37.

The square root of 87112783 is about 9333.4228983798. The cubic root of 87112783 is about 443.2961533760.

The spelling of 87112783 in words is "eighty-seven million, one hundred twelve thousand, seven hundred eighty-three".