39598121 has 2 divisors, whose sum is σ = 39598122. Its totient is φ = 39598120.

The previous prime is 39598099. The next prime is 39598127. The reversal of 39598121 is 12189593.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35271721 + 4326400 = 5939^2 + 2080^2 .

It is a cyclic number.

It is not a de Polignac number, because 39598121 - 2⁶ = 39598057 is a prime.

It is a super-2 number, since 2×39598121² = 3136022373461282, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (39598127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19799060 + 19799061.

It is an arithmetic number, because the mean of its divisors is an integer number (19799061).

Almost surely, 2^39598121 is an apocalyptic number.

It is an amenable number.

39598121 is a deficient number, since it is larger than the sum of its proper divisors (1).

39598121 is an equidigital number, since it uses as much as digits as its factorization.

39598121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19440, while the sum is 38.

The square root of 39598121 is about 6292.7037908994. The cubic root of 39598121 is about 340.8459930111.

The spelling of 39598121 in words is "thirty-nine million, five hundred ninety-eight thousand, one hundred twenty-one".