86734057 has 2 divisors, whose sum is σ = 86734058. Its totient is φ = 86734056.

The previous prime is 86734049. The next prime is 86734061. The reversal of 86734057 is 75043768.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64304361 + 22429696 = 8019^2 + 4736^2 .

It is a cyclic number.

It is not a de Polignac number, because 86734057 - 2³ = 86734049 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (86734757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43367028 + 43367029.

It is an arithmetic number, because the mean of its divisors is an integer number (43367029).

Almost surely, 2^86734057 is an apocalyptic number.

It is an amenable number.

86734057 is a deficient number, since it is larger than the sum of its proper divisors (1).

86734057 is an equidigital number, since it uses as much as digits as its factorization.

86734057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 141120, while the sum is 40.

The square root of 86734057 is about 9313.1121006890. The cubic root of 86734057 is about 442.6528047500.

The spelling of 86734057 in words is "eighty-six million, seven hundred thirty-four thousand, fifty-seven".