18496969 has 8 divisors (see below), whose sum is σ = 19907208. Its totient is φ = 17122560.

The previous prime is 18496967. The next prime is 18496979. The reversal of 18496969 is 96969481.

18496969 = T₃₅₅ + T₃₅₆ + ... + T₅₃₇.

It can be written as a sum of positive squares in 4 ways, for example, as 3286969 + 15210000 = 1813^2 + 3900^2 .

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 18496969 - 2¹ = 18496967 is a prime.

It is a super-2 number, since 2×18496969² = 684275724373922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18496963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7882 + ... + 9955.

It is an arithmetic number, because the mean of its divisors is an integer number (2488401).

Almost surely, 2^18496969 is an apocalyptic number.

It is an amenable number.

18496969 is a deficient number, since it is larger than the sum of its proper divisors (1410239).

18496969 is a wasteful number, since it uses less digits than its factorization.

18496969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17915.

The product of its digits is 839808, while the sum is 52.

The square root of 18496969 is about 4300.8102724952. The cubic root of 18496969 is about 264.4641789772.

The spelling of 18496969 in words is "eighteen million, four hundred ninety-six thousand, nine hundred sixty-nine".