7097818 has 32 divisors (see below), whose sum is σ = 13345920. Its totient is φ = 2756160.

The previous prime is 7097809. The next prime is 7097819. The reversal of 7097818 is 8187907.

It is a super-2 number, since 2×7097818² = 100758040722248, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7097819) 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 15 ways as a sum of consecutive naturals, for example, 10408 + ... + 11068.

It is an arithmetic number, because the mean of its divisors is an integer number (417060).

Almost surely, 2^7097818 is an apocalyptic number.

7097818 is a deficient number, since it is larger than the sum of its proper divisors (6248102).

7097818 is a wasteful number, since it uses less digits than its factorization.

7097818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 742.

The product of its (nonzero) digits is 28224, while the sum is 40.

The square root of 7097818 is about 2664.1730424280. The cubic root of 7097818 is about 192.1800430667.

The spelling of 7097818 in words is "seven million, ninety-seven thousand, eight hundred eighteen".