18621098 has 8 divisors (see below), whose sum is σ = 27950592. Its totient is φ = 9304236.

The previous prime is 18621091. The next prime is 18621139. The reversal of 18621098 is 89012681.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (18621091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2711 + ... + 6677.

It is an arithmetic number, because the mean of its divisors is an integer number (3493824).

Almost surely, 2^18621098 is an apocalyptic number.

18621098 is a deficient number, since it is larger than the sum of its proper divisors (9329494).

18621098 is a wasteful number, since it uses less digits than its factorization.

18621098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6316.

The product of its (nonzero) digits is 6912, while the sum is 35.

The square root of 18621098 is about 4315.2170281459. The cubic root of 18621098 is about 265.0544471013.

The spelling of 18621098 in words is "eighteen million, six hundred twenty-one thousand, ninety-eight".