86402213 has 2 divisors, whose sum is σ = 86402214. Its totient is φ = 86402212.

The previous prime is 86402209. The next prime is 86402227. The reversal of 86402213 is 31220468.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62995969 + 23406244 = 7937^2 + 4838^2 .

It is a cyclic number.

It is not a de Polignac number, because 86402213 - 2² = 86402209 is a prime.

It is a super-2 number, since 2×86402213² = 14930684822594738, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86402263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43201106 + 43201107.

It is an arithmetic number, because the mean of its divisors is an integer number (43201107).

Almost surely, 2^86402213 is an apocalyptic number.

It is an amenable number.

86402213 is a deficient number, since it is larger than the sum of its proper divisors (1).

86402213 is an equidigital number, since it uses as much as digits as its factorization.

86402213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 86402213 is about 9295.2790705820. The cubic root of 86402213 is about 442.0875542313.

The spelling of 86402213 in words is "eighty-six million, four hundred two thousand, two hundred thirteen".