392989097 has 2 divisors, whose sum is σ = 392989098. Its totient is φ = 392989096.

The previous prime is 392989087. The next prime is 392989111. The reversal of 392989097 is 790989293.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 219513856 + 173475241 = 14816^2 + 13171^2 .

It is a cyclic number.

It is not a de Polignac number, because 392989097 - 2¹⁰ = 392988073 is a prime.

It is a super-3 number, since 3×392989097³ (a number of 27 digits) contains 333 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (392989057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 196494548 + 196494549.

It is an arithmetic number, because the mean of its divisors is an integer number (196494549).

Almost surely, 2^392989097 is an apocalyptic number.

It is an amenable number.

392989097 is a deficient number, since it is larger than the sum of its proper divisors (1).

392989097 is an equidigital number, since it uses as much as digits as its factorization.

392989097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2204496, while the sum is 56.

The square root of 392989097 is about 19823.9526078933. The cubic root of 392989097 is about 732.4761706421.

The spelling of 392989097 in words is "three hundred ninety-two million, nine hundred eighty-nine thousand, ninety-seven".