87737873 has 2 divisors, whose sum is σ = 87737874. Its totient is φ = 87737872.

The previous prime is 87737831. The next prime is 87737879. The reversal of 87737873 is 37873778.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87291649 + 446224 = 9343^2 + 668^2 .

It is a cyclic number.

It is not a de Polignac number, because 87737873 - 2¹⁶ = 87672337 is a prime.

It is not a weakly prime, because it can be changed into another prime (87737879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43868936 + 43868937.

It is an arithmetic number, because the mean of its divisors is an integer number (43868937).

Almost surely, 2^87737873 is an apocalyptic number.

It is an amenable number.

87737873 is a deficient number, since it is larger than the sum of its proper divisors (1).

87737873 is an equidigital number, since it uses as much as digits as its factorization.

87737873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1382976, while the sum is 50.

The square root of 87737873 is about 9366.8496838585. The cubic root of 87737873 is about 444.3539385546.

The spelling of 87737873 in words is "eighty-seven million, seven hundred thirty-seven thousand, eight hundred seventy-three".