18608897 has 8 divisors (see below), whose sum is σ = 20339712. Its totient is φ = 16948800.

The previous prime is 18608881. The next prime is 18608899. The reversal of 18608897 is 79880681.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18608897 - 2⁴ = 18608881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18608899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17129 + ... + 18182.

It is an arithmetic number, because the mean of its divisors is an integer number (2542464).

Almost surely, 2^18608897 is an apocalyptic number.

18608897 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

18608897 is a deficient number, since it is larger than the sum of its proper divisors (1730815).

18608897 is a wasteful number, since it uses less digits than its factorization.

18608897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35359.

The product of its (nonzero) digits is 193536, while the sum is 47.

The square root of 18608897 is about 4313.8030784912. The cubic root of 18608897 is about 264.9965443954.

The spelling of 18608897 in words is "eighteen million, six hundred eight thousand, eight hundred ninety-seven".