10997998 has 32 divisors (see below), whose sum is σ = 19232640. Its totient is φ = 4664160.

The previous prime is 10997969. The next prime is 10997999. The reversal of 10997998 is 89979901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10997999) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34536 + ... + 34852.

It is an arithmetic number, because the mean of its divisors is an integer number (601020).

Almost surely, 2^10997998 is an apocalyptic number.

10997998 is a deficient number, since it is larger than the sum of its proper divisors (8234642).

10997998 is a wasteful number, since it uses less digits than its factorization.

10997998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432.

The product of its (nonzero) digits is 367416, while the sum is 52.

The square root of 10997998 is about 3316.3229637657. The cubic root of 10997998 is about 222.3845160924.

The spelling of 10997998 in words is "ten million, nine hundred ninety-seven thousand, nine hundred ninety-eight".