86742737 has 2 divisors, whose sum is σ = 86742738. Its totient is φ = 86742736.

The previous prime is 86742731. The next prime is 86742769. The reversal of 86742737 is 73724768.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63856081 + 22886656 = 7991^2 + 4784^2 .

It is a cyclic number.

It is not a de Polignac number, because 86742737 - 2¹⁰ = 86741713 is a prime.

It is not a weakly prime, because it can be changed into another prime (86742731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43371368 + 43371369.

It is an arithmetic number, because the mean of its divisors is an integer number (43371369).

Almost surely, 2^86742737 is an apocalyptic number.

It is an amenable number.

86742737 is a deficient number, since it is larger than the sum of its proper divisors (1).

86742737 is an equidigital number, since it uses as much as digits as its factorization.

86742737 is an evil number, because the sum of its binary digits is even.

The product of its digits is 395136, while the sum is 44.

The square root of 86742737 is about 9313.5780986686. The cubic root of 86742737 is about 442.6675705691.

It can be divided in two parts, 8674 and 2737, that added together give a palindrome (11411).

The spelling of 86742737 in words is "eighty-six million, seven hundred forty-two thousand, seven hundred thirty-seven".