36299881 has 2 divisors, whose sum is σ = 36299882. Its totient is φ = 36299880.

The previous prime is 36299873. The next prime is 36299897. The reversal of 36299881 is 18899263.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21160000 + 15139881 = 4600^2 + 3891^2 .

It is an emirp because it is prime and its reverse (18899263) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 36299881 - 2³ = 36299873 is a prime.

It is a super-2 number, since 2×36299881² = 2635362721228322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (36299831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18149940 + 18149941.

It is an arithmetic number, because the mean of its divisors is an integer number (18149941).

Almost surely, 2^36299881 is an apocalyptic number.

It is an amenable number.

36299881 is a deficient number, since it is larger than the sum of its proper divisors (1).

36299881 is an equidigital number, since it uses as much as digits as its factorization.

36299881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 186624, while the sum is 46.

The square root of 36299881 is about 6024.9382569450. The cubic root of 36299881 is about 331.1070290333.

The spelling of 36299881 in words is "thirty-six million, two hundred ninety-nine thousand, eight hundred eighty-one".