439090097 has 2 divisors, whose sum is σ = 439090098. Its totient is φ = 439090096.

The previous prime is 439090051. The next prime is 439090103. The reversal of 439090097 is 790090934.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 437688241 + 1401856 = 20921^2 + 1184^2 .

It is a cyclic number.

It is not a de Polignac number, because 439090097 - 2¹⁶ = 439024561 is a prime.

It is a super-2 number, since 2×439090097² = 385600226566938818, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (439090697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 219545048 + 219545049.

It is an arithmetic number, because the mean of its divisors is an integer number (219545049).

Almost surely, 2^439090097 is an apocalyptic number.

It is an amenable number.

439090097 is a deficient number, since it is larger than the sum of its proper divisors (1).

439090097 is an equidigital number, since it uses as much as digits as its factorization.

439090097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 61236, while the sum is 41.

The square root of 439090097 is about 20954.4767770517. The cubic root of 439090097 is about 760.0658397485.

The spelling of 439090097 in words is "four hundred thirty-nine million, ninety thousand, ninety-seven".