20458097 has 4 divisors (see below), whose sum is σ = 22317936. Its totient is φ = 18598260.

The previous prime is 20458093. The next prime is 20458103. The reversal of 20458097 is 79085402.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20458097 - 2² = 20458093 is a prime.

It is a super-2 number, since 2×20458097² = 837067465722818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20458091) 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 in 3 ways as a sum of consecutive naturals, for example, 929903 + ... + 929924.

It is an arithmetic number, because the mean of its divisors is an integer number (5579484).

Almost surely, 2^20458097 is an apocalyptic number.

It is an amenable number.

20458097 is a deficient number, since it is larger than the sum of its proper divisors (1859839).

20458097 is a wasteful number, since it uses less digits than its factorization.

20458097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1859838.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 20458097 is about 4523.0627897477. The cubic root of 20458097 is about 273.4985812519.

The spelling of 20458097 in words is "twenty million, four hundred fifty-eight thousand, ninety-seven".