109822997 has 4 divisors (see below), whose sum is σ = 111623436. Its totient is φ = 108022560.

The previous prime is 109822939. The next prime is 109823003. The reversal of 109822997 is 799228901.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 799228901 = 19 ⋅42064679.

It can be written as a sum of positive squares in 2 ways, for example, as 27394756 + 82428241 = 5234^2 + 9079^2 .

It is a cyclic number.

It is not a de Polignac number, because 109822997 - 2¹² = 109818901 is a prime.

It is a super-2 number, since 2×109822997² = 24122181340124018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109827997) 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, 900128 + ... + 900249.

It is an arithmetic number, because the mean of its divisors is an integer number (27905859).

Almost surely, 2^109822997 is an apocalyptic number.

It is an amenable number.

109822997 is a deficient number, since it is larger than the sum of its proper divisors (1800439).

109822997 is an equidigital number, since it uses as much as digits as its factorization.

109822997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1800438.

The product of its (nonzero) digits is 163296, while the sum is 47.

The square root of 109822997 is about 10479.6467974832. The cubic root of 109822997 is about 478.8848490422.

The spelling of 109822997 in words is "one hundred nine million, eight hundred twenty-two thousand, nine hundred ninety-seven".